<http://webisa.webdatacommons.org/prov/215889257>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/332384922> .
<http://webisa.webdatacommons.org/332384922>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<learnnc.org> .
<http://webisa.webdatacommons.org/332384922>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/332384922>	<http://www.w3.org/ns/prov#value>	"Summarize why classification is a useful tool for studying the past." .