| http://www.w3.org/ns/prov#value | - Here a door controller at one door that has sensed an abnormal condition, such as smoke, or a temperature above a predetermined level, would prevent the spread of the fire to specific areas of the building by issuing ???close door??? messages to itself and to selected other doors to prevent the spread of fire to specific areas of the building by closing off areas of the buildings' door openings, m
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