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<h2><a href="#TOC1" name="SEC1">GNU Free Documentation License</a></h2>
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<p>Version 1.1, March 2000 </p>
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<pre>Copyright (C) 2000 Free Software Foundation, Inc.
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59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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</pre>
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<p><strong>0. PREAMBLE</strong> </p>
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<p>The purpose of this License is to make a manual, textbook, or other written
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document "free" in the sense of freedom: to assure everyone the effective
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freedom to copy and redistribute it, with or without modifying it, either
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commercially or noncommercially. Secondarily, this License preserves for the
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author and publisher a way to get credit for their work, while not being
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considered responsible for modifications made by others. </p>
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<p>This License is a kind of "copyleft", which means that derivative works of
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the document must themselves be free in the same sense. It complements the GNU
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General Public License, which is a copyleft license designed for free software.
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</p>
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<p>We have designed this License in order to use it for manuals for free
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software, because free software needs free documentation: a free program should
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come with manuals providing the same freedoms that the software does. But this
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License is not limited to software manuals; it can be used for any textual work,
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regardless of subject matter or whether it is published as a printed book. We
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recommend this License principally for works whose purpose is instruction or
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reference. </p>
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<p><strong>1. APPLICABILITY AND DEFINITIONS</strong> </p>
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<p>This License applies to any manual or other work that contains a notice
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placed by the copyright holder saying it can be distributed under the terms of
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this License. The "Document", below, refers to any such manual or work. Any
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member of the public is a licensee, and is addressed as "you". </p>
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<p>A "Modified Version" of the Document means any work containing the Document
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or a portion of it, either copied verbatim, or with modifications and/or
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translated into another language. </p>
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<p>A "Secondary Section" is a named appendix or a front-matter section of the
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Document that deals exclusively with the relationship of the publishers or
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authors of the Document to the Document's overall subject (or to related
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matters) and contains nothing that could fall directly within that overall
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subject. (For example, if the Document is in part a textbook of mathematics, a
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Secondary Section may not explain any mathematics.) The relationship could be a
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matter of historical connection with the subject or with related matters, or of
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legal, commercial, philosophical, ethical or political position regarding them.
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</p>
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<p>The "Invariant Sections" are certain Secondary Sections whose titles are
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designated, as being those of Invariant Sections, in the notice that says that
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the Document is released under this License. </p>
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<p>The "Cover Texts" are certain short passages of text that are listed, as
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Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document
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is released under this License. </p>
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<p>A "Transparent" copy of the Document means a machine-readable copy,
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represented in a format whose specification is available to the general public,
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whose contents can be viewed and edited directly and straightforwardly with
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generic text editors or (for images composed of pixels) generic paint programs
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or (for drawings) some widely available drawing editor, and that is suitable for
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input to text formatters or for automatic translation to a variety of formats
|
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suitable for input to text formatters. A copy made in an otherwise Transparent
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file format whose markup has been designed to thwart or discourage subsequent
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modification by readers is not Transparent. A copy that is not "Transparent" is
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called "Opaque". </p>
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<p>Examples of suitable formats for Transparent copies include plain ASCII
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without markup, Texinfo input format, LaTeX input format, SGML or XML using a
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publicly available DTD, and standard-conforming simple HTML designed for human
|
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modification. Opaque formats include PostScript, PDF, proprietary formats that
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can be read and edited only by proprietary word processors, SGML or XML for
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which the DTD and/or processing tools are not generally available, and the
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machine-generated HTML produced by some word processors for output purposes
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only. </p>
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<p>The "Title Page" means, for a printed book, the title page itself, plus such
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following pages as are needed to hold, legibly, the material this License
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requires to appear in the title page. For works in formats which do not have any
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title page as such, "Title Page" means the text near the most prominent
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appearance of the work's title, preceding the beginning of the body of the text.
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</p>
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<p><strong>2. VERBATIM COPYING</strong> </p>
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<p>You may copy and distribute the Document in any medium, either commercially
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or noncommercially, provided that this License, the copyright notices, and the
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license notice saying this License applies to the Document are reproduced in all
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copies, and that you add no other conditions whatsoever to those of this
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License. You may not use technical measures to obstruct or control the reading
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or further copying of the copies you make or distribute. However, you may accept
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compensation in exchange for copies. If you distribute a large enough number of
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copies you must also follow the conditions in section 3. </p>
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<p>You may also lend copies, under the same conditions stated above, and you may
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publicly display copies. </p>
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<p><strong>3. COPYING IN QUANTITY</strong> </p>
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<p>If you publish printed copies of the Document numbering more than 100, and
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the Document's license notice requires Cover Texts, you must enclose the copies
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in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover
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Texts on the front cover, and Back-Cover Texts on the back cover. Both covers
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must also clearly and legibly identify you as the publisher of these copies. The
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front cover must present the full title with all words of the title equally
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prominent and visible. You may add other material on the covers in addition.
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Copying with changes limited to the covers, as long as they preserve the title
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of the Document and satisfy these conditions, can be treated as verbatim copying
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in other respects. </p>
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<p>If the required texts for either cover are too voluminous to fit legibly, you
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should put the first ones listed (as many as fit reasonably) on the actual
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cover, and continue the rest onto adjacent pages. </p>
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<p>If you publish or distribute Opaque copies of the Document numbering more
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than 100, you must either include a machine-readable Transparent copy along with
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each Opaque copy, or state in or with each Opaque copy a publicly-accessible
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computer-network location containing a complete Transparent copy of the
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Document, free of added material, which the general network-using public has
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access to download anonymously at no charge using public-standard network
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protocols. If you use the latter option, you must take reasonably prudent steps,
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when you begin distribution of Opaque copies in quantity, to ensure that this
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Transparent copy will remain thus accessible at the stated location until at
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least one year after the last time you distribute an Opaque copy (directly or
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through your agents or retailers) of that edition to the public. </p>
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<p>It is requested, but not required, that you contact the authors of the
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Document well before redistributing any large number of copies, to give them a
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chance to provide you with an updated version of the Document. </p>
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<p><strong>4. MODIFICATIONS</strong> </p>
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<p>You may copy and distribute a Modified Version of the Document under the
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conditions of sections 2 and 3 above, provided that you release the Modified
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Version under precisely this License, with the Modified Version filling the role
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of the Document, thus licensing distribution and modification of the Modified
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Version to whoever possesses a copy of it. In addition, you must do these things
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in the Modified Version: </p>
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<p> </p>
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<ul>
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<li><strong>A.</strong> Use in the Title Page (and on the covers, if any) a
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title distinct from that of the Document, and from those of previous versions
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(which should, if there were any, be listed in the History section of the
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Document). You may use the same title as a previous version if the original
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publisher of that version gives permission. </li>
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<li><strong>B.</strong> List on the Title Page, as authors, one or more
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persons or entities responsible for authorship of the modifications in the
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Modified Version, together with at least five of the principal authors of the
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Document (all of its principal authors, if it has less than five). </li>
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<li><strong>C.</strong> State on the Title page the name of the publisher of
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the Modified Version, as the publisher. </li>
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<li><strong>D.</strong> Preserve all the copyright notices of the Document.
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</li>
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<li><strong>E.</strong> Add an appropriate copyright notice for your
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modifications adjacent to the other copyright notices. </li>
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<li><strong>F.</strong> Include, immediately after the copyright notices, a
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license notice giving the public permission to use the Modified Version under
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the terms of this License, in the form shown in the Addendum below. </li>
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<li><strong>G.</strong> Preserve in that license notice the full lists of
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Invariant Sections and required Cover Texts given in the Document's license
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notice. </li>
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<li><strong>H.</strong> Include an unaltered copy of this License. </li>
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<li><strong>I.</strong> Preserve the section entitled "History", and its
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title, and add to it an item stating at least the title, year, new authors,
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and publisher of the Modified Version as given on the Title Page. If there is
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no section entitled "History" in the Document, create one stating the title,
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year, authors, and publisher of the Document as given on its Title Page, then
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add an item describing the Modified Version as stated in the previous
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sentence. </li>
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<li><strong>J.</strong> Preserve the network location, if any, given in the
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Document for public access to a Transparent copy of the Document, and likewise
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the network locations given in the Document for previous versions it was based
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on. These may be placed in the "History" section. You may omit a network
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location for a work that was published at least four years before the Document
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itself, or if the original publisher of the version it refers to gives
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permission. </li>
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<li><strong>K.</strong> In any section entitled "Acknowledgements" or
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"Dedications", preserve the section's title, and preserve in the section all
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the substance and tone of each of the contributor acknowledgements and/or
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dedications given therein. </li>
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<li><strong>L.</strong> Preserve all the Invariant Sections of the Document,
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unaltered in their text and in their titles. Section numbers or the equivalent
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are not considered part of the section titles. </li>
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<li><strong>M.</strong> Delete any section entitled "Endorsements". Such a
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section may not be included in the Modified Version. </li>
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<li><strong>N.</strong> Do not retitle any existing section as "Endorsements"
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or to conflict in title with any Invariant Section. </li>
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</ul>
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<p>If the Modified Version includes new front-matter sections or appendices that
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qualify as Secondary Sections and contain no material copied from the Document,
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you may at your option designate some or all of these sections as invariant. To
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do this, add their titles to the list of Invariant Sections in the Modified
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Version's license notice. These titles must be distinct from any other section
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titles. </p>
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<p>You may add a section entitled "Endorsements", provided it contains nothing
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but endorsements of your Modified Version by various parties--for example,
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statements of peer review or that the text has been approved by an organization
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as the authoritative definition of a standard. </p>
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<p>You may add a passage of up to five words as a Front-Cover Text, and a
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passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover
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Texts in the Modified Version. Only one passage of Front-Cover Text and one of
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Back-Cover Text may be added by (or through arrangements made by) any one
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entity. If the Document already includes a cover text for the same cover,
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previously added by you or by arrangement made by the same entity you are acting
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on behalf of, you may not add another; but you may replace the old one, on
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explicit permission from the previous publisher that added the old one. </p>
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<p>The author(s) and publisher(s) of the Document do not by this License give
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permission to use their names for publicity for or to assert or imply
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endorsement of any Modified Version. </p>
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<p><strong>5. COMBINING DOCUMENTS</strong> </p>
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<p>You may combine the Document with other documents released under this
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License, under the terms defined in section 4 above for modified versions,
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provided that you include in the combination all of the Invariant Sections of
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all of the original documents, unmodified, and list them all as Invariant
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Sections of your combined work in its license notice. </p>
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<p>The combined work need only contain one copy of this License, and multiple
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identical Invariant Sections may be replaced with a single copy. If there are
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multiple Invariant Sections with the same name but different contents, make the
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title of each such section unique by adding at the end of it, in parentheses,
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the name of the original author or publisher of that section if known, or else a
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unique number. Make the same adjustment to the section titles in the list of
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Invariant Sections in the license notice of the combined work. </p>
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<p>In the combination, you must combine any sections entitled "History" in the
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various original documents, forming one section entitled "History"; likewise
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combine any sections entitled "Acknowledgements", and any sections entitled
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"Dedications". You must delete all sections entitled "Endorsements." </p>
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<p><strong>6. COLLECTIONS OF DOCUMENTS</strong> </p>
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<p>You may make a collection consisting of the Document and other documents
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released under this License, and replace the individual copies of this License
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in the various documents with a single copy that is included in the collection,
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provided that you follow the rules of this License for verbatim copying of each
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of the documents in all other respects. </p>
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<p>You may extract a single document from such a collection, and distribute it
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individually under this License, provided you insert a copy of this License into
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the extracted document, and follow this License in all other respects regarding
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verbatim copying of that document. </p>
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<p><strong>7. AGGREGATION WITH INDEPENDENT WORKS</strong> </p>
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<p>A compilation of the Document or its derivatives with other separate and
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independent documents or works, in or on a volume of a storage or distribution
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medium, does not as a whole count as a Modified Version of the Document,
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provided no compilation copyright is claimed for the compilation. Such a
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compilation is called an "aggregate", and this License does not apply to the
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other self-contained works thus compiled with the Document, on account of their
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being thus compiled, if they are not themselves derivative works of the
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Document. </p>
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<p>If the Cover Text requirement of section 3 is applicable to these copies of
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the Document, then if the Document is less than one quarter of the entire
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aggregate, the Document's Cover Texts may be placed on covers that surround only
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the Document within the aggregate. Otherwise they must appear on covers around
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the whole aggregate. </p>
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<p><strong>8. TRANSLATION</strong> </p>
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<p>Translation is considered a kind of modification, so you may distribute
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translations of the Document under the terms of section 4. Replacing Invariant
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Sections with translations requires special permission from their copyright
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holders, but you may include translations of some or all Invariant Sections in
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addition to the original versions of these Invariant Sections. You may include a
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translation of this License provided that you also include the original English
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version of this License. In case of a disagreement between the translation and
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the original English version of this License, the original English version will
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prevail. </p>
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<p><strong>9. TERMINATION</strong> </p>
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<p>You may not copy, modify, sublicense, or distribute the Document except as
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expressly provided for under this License. Any other attempt to copy, modify,
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sublicense or distribute the Document is void, and will automatically terminate
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your rights under this License. However, parties who have received copies, or
|
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rights, from you under this License will not have their licenses terminated so
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long as such parties remain in full compliance. </p>
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<p><strong>10. FUTURE REVISIONS OF THIS LICENSE</strong> </p>
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<p>The Free Software Foundation may publish new, revised versions of the GNU
|
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Free Documentation License from time to time. Such new versions will be similar
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in spirit to the present version, but may differ in detail to address new
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problems or concerns. See http://www.gnu.org/copyleft/. </p>
|
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<p>Each version of the License is given a distinguishing version number. If the
|
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Document specifies that a particular numbered version of this License "or any
|
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later version" applies to it, you have the option of following the terms and
|
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conditions either of that specified version or of any later version that has
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been published (not as a draft) by the Free Software Foundation. If the Document
|
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does not specify a version number of this License, you may choose any version
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ever published (not as a draft) by the Free Software Foundation. </p>
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<p align="left"> </p>
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