Assertion: acid rain's acid | /r/CapableOf | react with the calcium compounds
Facets:
value: to create gypsum
type: PURPOSE
value: in the stones
type: LOCATION
value: chemically
type: MANNER
Source sentences:
text: Acids in the rain react with the calcium compounds in the stones to create gypsum, which then flakes off.
text: This is because the sulfuric acid in the rain chemically reacts with the calcium compounds in the stones (limestone, sandstone, marble, and granite) to create gypsum, which then flakes off.
text: Acids in the rain react with the calcium compounds in the stones to create gypsum, which then flakes off.