Assertion: gypsum | /r/HasProperty | key ingredient
Facets:
value: in even building materials
type: OTHER
value: in cement
type: LOCATION
value: in plaster
type: LOCATION
value: for thousands of years
type: TEMPORAL
Source sentences:
text: Gypsum has been a key ingredient in the building of homes and other buildings for thousands of years.
text: It is a key ingredient in cement, plaster, and even building materials.