<http://webisa.webdatacommons.org/418331442>	<http://www.w3.org/ns/prov#value>	"Write the syntax.A pure virtual function is a function declared in a base class that has no definition relative to the base class." .
<http://webisa.webdatacommons.org/418331442>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .
<http://webisa.webdatacommons.org/418331442>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/472627374>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/418331442> .