About: http://webisa.webdatacommons.org/438403624

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	A null string is a string that is initialized using QString's default constructor or by passing (const char *)0 to the constructor.
http://www.w3.org/ns/prov#wasQuotedFrom	qt.io