About: http://webisa.webdatacommons.org/32794891

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	content type - If properties.Afterproperties[ContentType] is null, is it safe to assume that the item is a document? - SharePoint Stack Exchange
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com