<http://webisa.webdatacommons.org/prov/472132085>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/227690735> .
<http://webisa.webdatacommons.org/227690735>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/516166246>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/227690735> .
<http://webisa.webdatacommons.org/227690735>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<sagemath.org> .
<http://webisa.webdatacommons.org/227690735>	<http://www.w3.org/ns/prov#value>	"If C is a category and x is any object, C(x) tries to" .