About: http://webisa.webdatacommons.org/264198979

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	A test message is defined as any message transmitted from a ship, such that all of the receiving ships have a prior knowledge of its characteristics and its time of transmission.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com