About: http://webisa.webdatacommons.org/48502030

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	an instrument for which heading is an output, said instrument including a compass and a gyroscope; and,
http://www.w3.org/ns/prov#wasQuotedFrom	google.com