About: http://webisa.webdatacommons.org/416549228

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	of matter, or, more precisely, baryonic matter, mainly hydrogen and helium gas.
http://www.w3.org/ns/prov#wasQuotedFrom	edu-observatory.org