Assertion: flame detector | /r/CapableOf | detect fire
Facets:
value: with an area
type: OTHER
value: on a certain distance
type: LOCATION
Source sentences:
text: If the distance between the flame and the flame detector is large compared to the dimension of the fire then the square law applies: If a flame detector can detect a fire with an area A on a certain distance, then a 4 times bigger flame area is necessary if the distance between the flame detector and the fire is doubled.