About: http://webisa.webdatacommons.org/69049494

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	However, since T can be anything, including bitwise 0, I need to mark at most one position as not empty, even though it looks like empty.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com