NTP No Attribution (NTP-0)
      $:

      Permission to use, copy, modify, and distribute this software and its documentation for any purpose
         is hereby granted, provided that the name of
        x;\Q not be used in advertising or publicity pertaining
        to distribution of the software without specific, written prior permission.
        /- makes no representations about the suitability
        of this software for any purpose. It is provided "as is" without express or implied warranty.