About: http://webisa.webdatacommons.org/295954057

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	Although it???s basically a hard vacuum, there are a few atoms of hydrogen, helium, and other elements.
http://www.w3.org/ns/prov#wasQuotedFrom	stardate.org