Assertion: smog | /r/HasProperty | a mixture of air pollutants
Facets:
Source sentences:
text: Smog is composed of a mixture of air pollutants which can endanger human health.
text: Smog is comprised of a mixture of air pollutants that can harm the environment, negatively effect health, and even cause damage to property.
text: Smog is composed of a mixture of air pollutants which can endanger human health.