About: http://webisa.webdatacommons.org/254807690

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	Can anyone provide a canonical answer (preferably with references) that PHP does have this feature, and any details such as the version it was introduced in, quirks, shortcuts etc?
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com