Assertion: radon | /r/AtLocation | all 50 states
Facets:
Source sentences:
text: It can be found in all 50 states.
text: It can be found in all 50 states.
text: It can be found in all 50 states.
text: It can be found in all 50 states.
text: It can be found in all 50 states.
text: It can be found in all 50 states.