1:- module(sosa, 2 [ 3 4 ]). 5 6:- rdf_register_prefix(sosa, 'http://www.w3.org/ns/sosa/'). 7:- rdf_register_prefix(ssn, 'http://www.w3.org/ns/ssn/'). 8:- rdf_register_prefix(wgs84, 'http://www.w3.org/2003/01/geo/wgs84_pos#'). 9:- rdf_register_prefix(example, 'http://example.org/data/').