About: http://webisa.webdatacommons.org/75007940

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	The experiments to date focus on photons, not massive particles such as electrons or atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org