<http://webisa.webdatacommons.org/prov/245850497>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/258334308> .
<http://webisa.webdatacommons.org/258334308>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/258334308>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.ca> .
<http://webisa.webdatacommons.org/258334308>	<http://www.w3.org/ns/prov#value>	"FIG. 21A is a plan view showing a movable portion of an optical head according to the seventh embodiment of the present invention;" .