Assertion: acid rain's ph level | /r/HasProperty | less than 7
Facets:
Source sentences:
text: Acid rain are acidic, i.e., the pH levels are less than 7.
text: A liquid is acidic if the pH level is less than 7, whilst it is non-acidic if the pH level is more than 7.
text: A liquid is acidic if the pH level is less than 7, whilst it is non-acidic if the pH level is more than 7.