<http://caligraph.org/ontology/Sigma_digital_camera>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Digital_camera> .
<http://caligraph.org/ontology/Sigma_DP_camera>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sigma_digital_camera> .
<http://caligraph.org/ontology/Sigma_DSLR_camera>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sigma_digital_camera> .
<http://caligraph.org/ontology/Sigma_digital_camera>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Sigma_camera> .
<http://caligraph.org/ontology/Sigma_digital_camera>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Sigma_digital_cameras> .
<http://caligraph.org/ontology/Sigma_digital_camera>	<http://www.w3.org/2000/01/rdf-schema#label>	"Sigma digital camera" .
<http://caligraph.org/ontology/Sigma_digital_camera>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .