About: http://webisa.webdatacommons.org/131432578

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Every E is a C but not every C is an E. E extends C is like saying E adds to C therefore a C might not have the same amount of things in it that an E does.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com