SWI-Prolog -- rdf_unload_graph/1

Documentation
- Reference manual
- Packages
  - SWI-Prolog Semantic Web Library 3.0
    - Two RDF APIs
      - library(semweb/rdf_db): The RDF database
        
        Graph manipulation
        
        rdf_create_graph/1
        
        rdf_unload_graph/1
        
        rdf_graph_property/2
        
        rdf_set_graph/2

Availability::- use_module(library(semweb/rdf_db)).

Source

[det]rdf_unload_graph(+Graph)

Remove Graph from the RDF store. Succeeds silently if the named graph does not exist.