<http://purl.org/NET/c4dm/keys.owl#mode> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#DatatypeProperty> .
<http://purl.org/NET/c4dm/keys.owl#mode> <http://www.w3.org/2000/01/rdf-schema#domain> <http://purl.org/NET/c4dm/keys.owl#Key> .
<http://purl.org/NET/c4dm/keys.owl#mode> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/2002/07/owl#DatatypeProperty> .
<http://purl.org/NET/c4dm/keys.owl#mode> <http://www.w3.org/2000/01/rdf-schema#domain> <http://purl.org/NET/c4dm/keys.owl#Key> .