Assertion: radon | /r/CapableOf | come in through gap
Facets:
value: in plumbing passageways
type: LOCATION
Source sentences:
text: It comes in through joints, cracks, in concrete walls or floors, openings in drains or sump pits, and gaps in plumbing passageways –
text: Radon comes in through the foundation, where the foundation comes in contact with the soil; through gaps, cracks and cavities in walls where plumbing enters; and through construction joints.