Matches in DBpedia 2014 for { ?s ?p A siren is a loud noise making device. Most modern ones are civil defense or air raid sirens, tornado sirens, nuclear test sirens, or the sirens on emergency service vehicles such as ambulances, police cars and fire trucks. There are two general types: pneumatic and electronic.Many fire sirens serve double duty as tornado or civil defense sirens, alerting an entire community of impending danger.. }
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- Siren_(alarm) comment "A siren is a loud noise making device. Most modern ones are civil defense or air raid sirens, tornado sirens, nuclear test sirens, or the sirens on emergency service vehicles such as ambulances, police cars and fire trucks. There are two general types: pneumatic and electronic.Many fire sirens serve double duty as tornado or civil defense sirens, alerting an entire community of impending danger.".