Assertion: ozone | /r/HasProperty | harmful ultraviolet sunlight
Facets:
Source sentences:
text: We all know that ozone in the stratosphere blocks harmful ultraviolet sunlight, and perhaps some people know that ozone at the Earth's surface is itself harmful, damaging people's lungs and contributing to smog.
text: Ozone in the stratophere's ozone layer blocks harmful ultraviolet radiation from the Sun.