<http://webisa.webdatacommons.org/123615500>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/123615500>	<http://www.w3.org/ns/prov#value>	"answer, but how to judge whether the answer was right or wrong?" .
<http://webisa.webdatacommons.org/prov/389277752>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/123615500> .
<http://webisa.webdatacommons.org/123615500>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<docstoc.com> .