<http://webisa.webdatacommons.org/prov/325409878>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/285027367> .
<http://webisa.webdatacommons.org/285027367>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<stackoverflow.com> .
<http://webisa.webdatacommons.org/285027367>	<http://www.w3.org/ns/prov#value>	"It is essential to have a map where the value itself is a set." .
<http://webisa.webdatacommons.org/285027367>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .