Fix named graph constraints

Julien LepillerFri Apr 10 02:29:38+0200 2020

a336e68

guile-rdf/nquads
namelast commitdate
fromrdf.scmAdd nquads generationThu Apr 09 23:48:40+0200 2020
parser.scmAdd nquads formatTue Apr 07 04:57:36+0200 2020
tordf.scmFix nquads parsing issueWed Apr 08 03:08:57+0200 2020