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<http://webisa.webdatacommons.org/prov/300118844>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/185006785> .
<http://webisa.webdatacommons.org/185006785>	<http://www.w3.org/ns/prov#value>	"Magnetic disks are the most popular medium for" .
<http://webisa.webdatacommons.org/185006785>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<psexam.com> .