About: http://webisa.webdatacommons.org/203663232

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	These fields are inseparable from the vacuum and are responsible for all the electromagnetic phenomena including the electromagnetic waves such as light.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com