About: http://webisa.webdatacommons.org/172617075

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	Stating that they are in the koran is a truth, but it does nothing for your OP as it never states in the Koran the these beings are the Greys.
http://www.w3.org/ns/prov#wasQuotedFrom	abovetopsecret.com