<http://webisa.webdatacommons.org/18671952>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<mathforum.org> .
<http://webisa.webdatacommons.org/18671952>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/242754855>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/18671952> .
<http://webisa.webdatacommons.org/prov/59201500>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/18671952> .
<http://webisa.webdatacommons.org/18671952>	<http://www.w3.org/ns/prov#value>	"Results pages include computation and graphs, where applicable; and categories such as encyclopedia, lecture and practice, and online books\" to refine results." .
<http://webisa.webdatacommons.org/prov/180706354>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/18671952> .