Assertion: radon | /r/CapableOf | escape through crevice
Facets:
value: from the earth's crust
type: LOCATION
value: in bedrock
type: LOCATION
Source sentences:
text: From the soil it escapes from the earth's crust through cracks and crevices in bedrock, and either seeps through foundation cracks or poorly sealed areas into basements and homes, or it dissolves in the groundwater that you may use as your water supply.