About: http://webisa.webdatacommons.org/451403317

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	One or more endless chains are preferably driven by a sprocket, or other means, and surround each pontoon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com