About: http://webisa.webdatacommons.org/412166208

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	This can also occur in flight if the helicopter passes close to a building or other solid obstruction.
http://www.w3.org/ns/prov#wasQuotedFrom	wisegeek.com