Assertion: smog's pollutant | /r/HasProperty | created in this kind of smog
Facets:
Source sentences:
text: Ozone, a toxic gas that is not normally produced at lower atmospheric levels, is one of the primary pollutants created in this kind of smog.
text: Ozone, a toxic gas that is not normally produced at lower atmospheric levels, is one of the primary pollutants created in this kind of smog.