About: http://webisa.webdatacommons.org/365721182

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	FIG. 1 is an illustrative drawing of an electromagnetic wave with the direction of propagation, electric and magnetic fields shown.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com