About: http://webisa.webdatacommons.org/210351166

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	mass (which means almost nothing except for light and other massless particles)
http://www.w3.org/ns/prov#wasQuotedFrom	umich.edu