Added triplesOf for exposing triples of graph, and a simple selector function and some related functions.
Added triplesOf for exposing triples of graph, and a simple selector function and some related functions.

darcs-hash:20070922082245-db1bb-6c2b8c0a7c77157e5874f294b1f2fe52c9c7b7f1.gz

amccausl/RDF4H