About: http://webisa.webdatacommons.org/362477360

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	Note that the values of the constraint hash cannot be single strings or numbers, except for certain strings (such as 'pos', 'nonzero', or 'even', as described in Constraining input to numbers").
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org