About: http://webisa.webdatacommons.org/12147735

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	And even if it was not, it still is the same quantity found in massive particles such as electrons and silver atoms, since spin must balance out in particle equation involving both massive and massless particles.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com