Assertion: fire engine's siren | /r/HasProperty | unique
Facets:
Source sentences:
text: The fire truck also has a unique siren not found on other emergency vehicles.
text: In the Xbox 360 and PlayStation 3 versions of the game, the siren is shared with all other emergency vehicles in the game, however in the enhanced Xbox One, PlayStation 4 and PC versions of the game, the Fire Truck has a unique siren and wailer which are slightly deeper in tone.