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Simplex chime at Providence Hospital [01]
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Simplex chime at Providence Hospital [02]
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Fire alarm bell and light at Johns Hopkins Hospital [02]
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Fire alarm bell and light at Johns Hopkins Hospital [01]
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Bag on fire alarm
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Blackburn Inn [06]
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Wheelock NS at Montgomery General Hospital office building [01]
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Wheelock NS at Montgomery General Hospital office building [02]
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Basement corridor at 18109 Prince Philip Drive