Assertion: asbestos | /r/ObjectUse | used until late 1980s
Facets:
value: commonly
type: DEGREE
value: in building materials
type: LOCATION
Source sentences:
text: Asbestos was commonly used in building materials before the mid-1970s and occasionally until the late 1980s because it is strong, fire- and corrosion-resistant, and a good insulator.