About: http://webisa.webdatacommons.org/59091668

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	So I agree, since the photon is an EM phenomenon and relativity says Maxwell???s equations govern and you say gravity causes it then gravity MUST be a EM phenomenon.
http://www.w3.org/ns/prov#wasQuotedFrom	wattsupwiththat.com