| http://www.w3.org/ns/prov#value | - When the sprinkler head is mistakenly operated by a temperature rise which is produced by a cause other than a fire, in order to prevent false information from being sent by the sprinkler head operation signal generated from the switching means cooled, the logical product (AND) of the sprinkler head operation signal and the water flow detection signal from the water flow detector is made for decid
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