Assertion: stairwell | /r/ObjectUse | used as the fire attack stairwell
Facets:
Source sentences:
text: When the stairwell type and the stairwell location evaluations both indicate that the same stairwell should be used as the fire attack stairwell, the incident commander must evaluate the building and the fire conditions and designate the stairwells in a manner that will allow for the most effective operation to be performed.