About: http://webisa.webdatacommons.org/201505820

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	sources of power, the twist of the sail, control of the sails and other topics
http://www.w3.org/ns/prov#wasQuotedFrom	google.com