About: http://webisa.webdatacommons.org/439097723

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	As a 'justification,' you may be interested to know that the value of zero is a special value for the standard floating-point types as well.
http://www.w3.org/ns/prov#wasQuotedFrom	codeproject.com