- library
- semweb
- rdf_db.pl -- Core RDF database
 - rdf_cache.pl -- Cache RDF triples
 - rdfs.pl -- RDFS handling
 - rdf_persistency.pl -- RDF persistency plugin
 - rdf_litindex.pl -- Search literals
 - rdf_ntriples.pl -- Process files in the RDF N-Triples format
 - rdf11.pl -- RDF 1.1 API
 - sparql_client.pl -- SPARQL client library
 - turtle.pl -- Turtle: Terse RDF Triple Language
 - rdf_turtle_write.pl -- Turtle - Terse RDF Triple Language writer
 - rdf_http_plugin.pl -- RDF HTTP Plugin
 - rdf_library.pl -- RDF Library Manager
 - rdf_sandbox.pl -- Declare RDF API sandbox-safe
 - rdf_zlib_plugin.pl -- RDF compressed-data plugin
 
 
 - semweb
 
- rdf_stopgap_token(-Token) is nondet
 - True when Token is a stopgap token. Currently, this implies one
of:
exclude_from_index(token, Token)is truedefault_stopgap(Token)is true- Token is an atom of length 1
 - Token was added to the dynamic stopgap token set because it appeared in more than stopgap_threshold literals.