Assertion: carbon tetrachloride | /r/ObjectUse | used in the past
Facets:
value: as a cleaning fluid
type: PURPOSE
value: commonly
type: TEMPORAL
Source sentences:
text: Carbon tetrachloride was commonly used in the past as a cleaning fluid (as a degreasing agent in dry cleaning institutions and other industries, and as a spot remover for clothes, furniture, and carpeting in households).