About: http://webisa.webdatacommons.org/163488635

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	@IncnisMrsi: I was complaining that he claims that photon propagation in a medium, where the speed of light is reduced, is an example of making light massive.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com