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  https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document

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W3C Software and Document Notice and License

   Status: This license takes effect 13 May, 2015.

   This work is being provided by the copyright holders under the
   following license.

License

   By obtaining and/or copying this work, you (the licensee) agree
   that you have read, understood, and will comply with the
   following terms and conditions.

   Permission to copy, modify, and distribute this work, with or
   without modification, for any purpose and without fee or
   royalty is hereby granted, provided that you include the
   following on ALL copies of the work or portions thereof,
   including modifications:
     * The full text of this NOTICE in a location viewable to
       users of the redistributed or derivative work.
     * Any pre-existing intellectual property disclaimers,
       notices, or terms and conditions. If none exist, the
       [24]W3C Software and Document Short Notice should be
       included.
      https://www.w3.org/Consortium/Legal/copyright-software-short-notice

     * Notice of any changes or modifications, through a copyright
       statement on the new code or document such as "This
       software or document includes material copied from or
       derived from [title and URI of the W3C document]. Copyright
       © [YEAR] W3C® (MIT, ERCIM, Keio, Beihang)."

Disclaimers

   THIS WORK IS PROVIDED "AS IS," AND COPYRIGHT HOLDERS MAKE NO
   REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO, WARRANTIES OF MERCHANTABILITY OR FITNESS
   FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE OR
   DOCUMENT WILL NOT INFRINGE ANY THIRD PARTY PATENTS, COPYRIGHTS,
   TRADEMARKS OR OTHER RIGHTS.

   COPYRIGHT HOLDERS WILL NOT BE LIABLE FOR ANY DIRECT, INDIRECT,
   SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF ANY USE OF THE
   SOFTWARE OR DOCUMENT.

   The name and trademarks of copyright holders may NOT be used in
   advertising or publicity pertaining to the work without
   specific, written prior permission. Title to copyright in this
   work will at all times remain with copyright holders.

Notes

   This version:
   [25]http://www.w3.org/Consortium/Legal/2015/copyright-software-
   and-document

     [25] http://www.w3.org/Consortium/Legal/2015/copyright-software-and-document

   Previous version:
   [26]http://www.w3.org/Consortium/Legal/2002/copyright-software-
   20021231

     [26] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231

   This version makes clear that the license is applicable to both
   software and text, by changing the name and substituting "work"
   for instances of "software and its documentation." It moves
   "notice of changes or modifications to the files" to the
   copyright notice, to make clear that the license is compatible
   with other liberal licenses.

