About: http://webisa.webdatacommons.org/391240775

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	If, on the other hand, the communication message is an acknowledgment request, the checksum for the previous message is examined.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com