Assertion: stairwell | /r/HasProperty | rectangular access
Facets:
value: through the first floor
type: LOCATION
Source sentences:
text: 1-4, the stairwell includes a rectangular access opening 26 cut through the first floor 18, a basement landing 20 providing access to the basement level at the bottom of the stairs, and a pair of sidewalls 22 and 24 extending through the sides of the access opening and along each side of the stairs between the basement landing and the access opening at the top of the steps.