About: http://webisa.webdatacommons.org/329400970

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	But the existence of most of the proposed forms of matter is difficult to confirm or deny.
http://www.w3.org/ns/prov#wasQuotedFrom	newscientist.com