This library is distributed under the   LGPL  licence terms. For details
visit http://www.gnu.org/copyleft/lesser.html.

Holders    of    the     SWI-Prolog      commercial     license     (see
http://www.swi.psy.uva.nl/projects/SWI-Prolog/) may use   this  software
under the same conditions as SWI-Prolog.