This file is indexed.

/usr/share/doc/clips-doc/copyright is in clips-doc 6.24-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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This is Debian GNU/Linux's prepackaged version of the NASA's CLIPS
expert system documentation.

This package was put together by me, Javier Fernandez-Sanguino Peña
<jfs@computer.org>, from the NASA sources, which I obtained from
http://www.ghgcorp.com/clips/download/documentation/
(now http://www.ghg.net/clips/download/documentation/)

----------------------------------------------------------------------------
CLIPS is, as stated in its FAQ (http://www.ghg.net/clips/CLIPS-FAQ) freely
distributable:

"
(...)

 4) CAN CLIPS BE REDISTRIBUTED? ARE THERE ANY LICENSING FEES?
-------------------------------------------------------------

 Copies of CLIPS executables, documentation, and source code  
 downloaded from http://www.ghg.net/clips/download.html are 
 subject to the following license agreement: 

(...)

"
------------------------------------------------------------------------
CLIPS License Information


Permission is hereby granted, free of charge, to any person obtaining a 
copy of this software and associated documentation files (the "Software"), 
to deal in the Software without restriction, including without limitation 
the rights to use, copy, modify, merge, publish, distribute, and/or sell 
copies of the Software, and to permit persons to whom the Software is 
furnished to do so.                             

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 
IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL 
INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM 
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 
PERFORMANCE OF THIS SOFTWARE.

CLIPS is released as public domain software and as such you are under no 
obligation to pay for its use. However, if you derive commercial or 
monetary benefit from use of the software or just want to show support, 
please consider making a voluntary payment based on the worth of the 
software to you as compensation for the time and effort required to 
develop and maintain CLIPS. Payments can be made online at 
http://order.kagi.com/?JKT.

------------------------------------------------------------------------