Run a single-BGP SPARQL select with fixed predicate and object

Issues a SELECT ?s WHERE { ?s P O } query where P and O are the supplied predicate and object. Useful when the object is a known type (e.g., predicate = "a", object = "cybed:Framework").

Usage

sparql_subjects(rdf, predicate, object)

Arguments

rdf

An rdf object.

predicate

Character SPARQL predicate.

object

Character SPARQL object (either prefixed-URI or literal).

Value

A tibble with column s (character).

See also

Other SPARQL helpers: element_framework_bindings(), example_framework_bindings(), framework_metadata(), organizing_unit_framework_bindings(), role_element_bindings(), role_framework_bindings(), sparql_pairs()

Examples

if (FALSE) { # \dontrun{
rdf <- load_combined_ntriples_graph()
sparql_subjects(rdf, "a", "cybed:Framework")
} # }