About: http://webisa.webdatacommons.org/213649790

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	Even if it is, couldn???t it be wrapped in a function called something like NonNullToTrue (although this could not have argument or result types more specific than Variant).
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com