Assertion: ozone | /r/HasProperty | occurring gas
Facets:
value: naturally
type: MANNER
value: in the atmosphere
type: LOCATION
Source sentences:
text: Ozone is a naturally occurring gas that is present in the upper atmosphere.
text: Ozone is a naturally occurring gas created from oxygen atoms.
text: Ozone is a naturally occurring gas created from oxygen atoms.
text: Ozone is the naturally occurring gas in the atmosphere.