Assertion: carnotite's presence | /r/CapableOf | become of concern
Facets:
value: to homeowners
type: TRANSITIVE-OBJECT
value: recently
type: TEMPORAL
value: because of its daughters
type: CAUSE
Source sentences:
text: Recently, the natural presence of uranium in many soils has become of concern to homeowners because of the generation of radon and its daughters.
text: Recently, the natural presence of uranium in many soils has become of concern to homeowners because of the generation of radioactive radon gas and its daughters particularly in confined spaces with low circulation such as basements.