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<http://webisa.webdatacommons.org/prov/453331006>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/367149914> .
<http://webisa.webdatacommons.org/367149914>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .
<http://webisa.webdatacommons.org/367149914>	<http://www.w3.org/ns/prov#value>	" add information about types of workers" .