About: http://webisa.webdatacommons.org/113379120

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	Though the word itself evokes science fiction, antimatter is an ordinary -- if highly uncommon -- material that cosmologists believe once made up almost exactly half of the substance of the universe.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com