<http://webisa.webdatacommons.org/438510812>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/382888910>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/438510812> .
<http://webisa.webdatacommons.org/438510812>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/438510812>	<http://www.w3.org/ns/prov#value>	"In a preferred embodiment of the present invention, the document type field 412 reflects whether the document is a text file, a still image, a sequence of motion video images, or a sequence of digital audio images." .