About: http://webisa.webdatacommons.org/449550756

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	Probably the code just checks to see if there is an entry of the same name and does nothing if there is.
http://www.w3.org/ns/prov#wasQuotedFrom	macworld.com