About: http://webisa.webdatacommons.org/400896960

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 mechanism, typically consisting of rings pivoted at right angles, for keeping an instrument such as a compass or chronometer horizontal in a moving vessel or aircraft
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com