<http://webisa.webdatacommons.org/291466048>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ck12.org> .
<http://webisa.webdatacommons.org/291466048>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/291466048>	<http://www.w3.org/ns/prov#value>	"How scientists can determine age and other features of a rock or material it contains." .
<http://webisa.webdatacommons.org/prov/328531441>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/291466048> .