Assertion: air horn | /r/HasProperty | pneumatic device
Facets:
Source sentences:
text: An air horn is a pneumatic device designed to create an extremely loud noise for signaling purposes.
text: The air horn is a pneumatic device designed to emit an extremely loud sound for the purposes of signaling and alerting other drivers to a vehicle's presence.
text: The air horn is a pneumatic device designed to create an extremely loud noise for signalling purposes.
text: An air horn is a pneumatic device designed to create an extremely loud noise for signalling purposes.