In Python syntax:
# import the libraries
from rdflib.TripleStore import TripleStore
from rdflib.URIRef import URIRef
# resource for a specific URI:
subject = URIRef("URI_of_Subject")
# create the triple store
triples = TripleStore()
# parse an RDF file and store it in the triple store
triples.load("membership.rdf")
# do something with (p,o) pairs
for (p,o) in triples.predicate_objects(subject) :
do_something(p,o)