Assertion: fire sprinkler system | /r/HasProperty | filled with compressed air
Facets:
value: for the winter
type: TEMPORAL
Source sentences:
text: A dry fire sprinkler system is filled with compressed air or nitrogen and only filled with water when a sprinkler is triggered.
text: The alternate fire sprinkler system can be filled with water during warm weather, and drained and filled with compressed air for the winter.