About: http://webisa.webdatacommons.org/379983480

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	Basically instead of returning 1 (true) or 0 (false) depending on whether the arguments are equal or unequal, the spaceship operator will return 1, 0, or ???1 depending on the value of the left argument relative to the right argument.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com