Assertion: smog's ozone | /r/HasProperty | good
Facets:
value: in the upper atmosphere
type: LOCATION
Source sentences:
text: Ozone can be beneficial or harmful, good or bad, depending on its location.
text: Ozone is a good thing in the upper atmosphere.
text: But I thought ozone was good?
text: Stratospheric ozone is “good” because it protects living things from ultraviolet radiation from the sun.
text: Ozone can be good or bad, depending on where it is found.