About: http://webisa.webdatacommons.org/422979075

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	Ah, for floating point numbers you are wrong, as .5 is a value that can be exactly represented.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com