About: http://webisa.webdatacommons.org/245247161

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 system can includes a fixed tower with a mooring swivel at the top, and a floating structure such as a barge that is moored to the tower to weathervane about the tower.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com