Assertion: occurring tritium | /r/HasProperty | rare
Facets:
value: on earth
type: LOCATION
value: extremely
type: DEGREE
Source sentences:
text: Naturally occurring tritium is extremely rare on Earth.
text: Naturally occurring tritium is extremely rare on Earth, where trace amounts are formed by the interaction of the atmosphere with cosmic rays.
text: Naturally occurring tritium is extremely rare on Earth, where trace amounts are formed by the interaction of the atmosphere with cosmic rays.