About: http://webisa.webdatacommons.org/69005400

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	To capture content without including any leading or trailing whitespace you could use the following - written in longer form for clarity.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com