<http://webisa.webdatacommons.org/430849077>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<classroomm.com> .
<http://webisa.webdatacommons.org/430849077>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/105128351>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/430849077> .
<http://webisa.webdatacommons.org/430849077>	<http://www.w3.org/ns/prov#value>	"Is it really necessary to set arguments and return types from object* to id for polymorphism?" .
<http://webisa.webdatacommons.org/prov/388756575>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/430849077> .