Assertion: air horn | /r/HasProperty | pressurized air source
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: It is usually composed of a pressurized air source coupled to a horn through a valve which allows the device to be turned on and off.
text: It is usually composed of a pressurized air source coupled to a horn through a valve which allows the device to be turned on and off.