About: http://webisa.webdatacommons.org/103642956

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	In order to obtain a solution, one of the variables must be set to zero.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk