About: http://webisa.webdatacommons.org/444679539

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	Your work looks good to me, except for a mistake in the last step (probably a typo).
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com