About: http://webisa.webdatacommons.org/450113266

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	Light is an electromagnetic oscillation and propagation of waves at very high frequency.
http://www.w3.org/ns/prov#wasQuotedFrom	marxists.org