Table for the 4 triples for predicate cpack:usesSystemFile in graph https://cliopatria.swi-prolog.org/packs/command

Subject	Object
?:command.pl	?:library(http/http_dispatch)
?:command.pl	?:library(http/http_parameters)
?:command.pl	?:library(http/http_path)
?:command.pl	?:library(semweb/rdf_db)