About: http://webisa.webdatacommons.org/30518002

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	You can not add keywords to the language but everything is an object and everything can be extended with prototyping.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com