About: http://webisa.webdatacommons.org/197173457

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	Receiver-configurable distresses (RCDs) allowed a sender to publish named kinds of messages (help at location, intercepting X, ship status, bombing planet, etc.) but receivers control the formatting.
http://www.w3.org/ns/prov#wasQuotedFrom	ycombinator.com