About: http://webisa.webdatacommons.org/241000558

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	Purcell has a good discussion on this and drives home very effectively the comparison with whether a material is solid or liquid: that too depends completely on the timescales involved.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com