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<http://webisa.webdatacommons.org/prov/480458131>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421343931> .
<http://webisa.webdatacommons.org/421343931>	<http://www.w3.org/ns/prov#value>	"In this first position, prongs 304 a-304 c of the retrieval assembly 300 form an open configuration that may be used to grasp objects such as stones or calculi." .
<http://webisa.webdatacommons.org/421343931>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/154506115>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/421343931> .