| http://www.w3.org/ns/prov#value | - For each of these sensor types 620, the security system can be configured to report an alert based upon a change in the condition or quantity being measured, or by the condition or quantity reaching a particular relationship to a predetermined threshold, where the relationship can be, for example, one or more of less than, equal to, or more than (i.e., a monitored temperature is less than or equal
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