Name: runtime/prolog/yap
        Summary: Yet Another Prolog (yap)
      Publisher: lnf
        Version: 6.2.2
  Build Release: 5.11
         Branch: 1.0.0.0
 Packaging Date: May 31, 2015 10:58:25 PM 
           Size: 17.40 MB
Compressed Size: 6.28 MB
           FMRI: pkg://lnf/runtime/prolog/yap@6.2.2,5.11-1.0.0.0:20150531T225825Z

License:

The main core of the YAP distribution is distributed under a dual
license: the Perl Artistic license 2 and the FSF's LGPL. The YAP
distribution also contains files distributed under the LGPL
exclusively, and under the GPL. See documentation e.g. on
http://www.dcc.fc.up.pt/~vsc/YAP/ for detailed information.