Assertion: krypton | /r/HasAspect | important role
Facets:
value: in usage
type: OTHER
Source sentences:
text: Krypton has an important role in production and usage of the krypton fluoride laser.
text: Krypton has an important role in production and usage of the krypton fluoride laser.
text: Krypton has an important role in production and usage of the krypton fluoride laser.