Assertion: krypton | /r/HasProperty | stable
Facets:
value: at low temperature
type: TEMPORAL
Source sentences:
text: It is a crystalline white solid and is stable at low temperature.
text: Krypton has isotopes of every mass number from 74 through 95; six, with mass numbers 78, 80, 82, 83, 84, and 86, are stable.