<http://webisa.webdatacommons.org/410891217>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/329358111>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/410891217> .
<http://webisa.webdatacommons.org/410891217>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackexchange.com> .
<http://webisa.webdatacommons.org/410891217>	<http://www.w3.org/ns/prov#value>	"But if I do not keep track of what the solutions are, how do I know whether there are any duplicates or not?" .