About: http://webisa.webdatacommons.org/53900726

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	Today, only two known examples of the Whirlwind are extant ?? one in the Hoover Historical Center in Canton, Ohio and the other in a private collection.
http://www.w3.org/ns/prov#wasQuotedFrom	1377731.com