Assertion: tub's seat | /r/HasProperty | built-in
Facets:
Source sentences:
text: One of the main features of walk-in tubs is a built-in seat (some tubs come without the built-in seat).
text: Unlike a standard bathtub, a walk-in tub has a lower threshold, higher walls, a built-in seat and a door that opens to allow the bather inside.