- lib
- semweb
- rdf_label.pl -- Generate labels for RDF objects
 - rdf_optimise.pl
 - rdf_file_type.pl -- Load RDF data from unknown file-type
 - rdf_json.pl -- JSON Representation for RDF graphs
 - rdf_describe.pl -- RDF Bounded descriptions
 - rdf_bnode.pl -- RDF graph operations on bnodes
 - rdf_schema.pl
 - rdf_graphviz.pl -- Interface to graphviz for RDF graphs
 - rdf_abstract.pl -- Abstract RDF graphs
 - rdf_description.pl -- Deal with descriptive nodes in RDF models
 
 
 - semweb
 
- rdf_db_goal(+Goal, -Subject, -Predicate, -Object)[multifile, library(semweb/rdf_optimise)]
 - True if Goal is a pure (logical) predicate on the RDF database
involving the given Subject, Predicate and Object. Defined
multifile, allowing the optimiser to understand user-defined
rdf/3 like predicates.
- To be done
 - - Allow specifying different costs and branching factors