About: http://webisa.webdatacommons.org/36264731

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	In physics, a free particle is a particle that, in some sense, is not bound by an external force, or equivalently not in a region where its potential energy varies.
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org