<http://webisa.webdatacommons.org/226210750>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/226210750>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackexchange.com> .
<http://webisa.webdatacommons.org/prov/104879677>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/226210750> .
<http://webisa.webdatacommons.org/226210750>	<http://www.w3.org/ns/prov#value>	"Given a solution to Kirkman's School Girl Problem, it is of course easy enough to check that it actually is a solution." .