Assertion: nitric acid | /r/ObjectUse | used in etching designs
Facets:
value: on copper
type: LOCATION
value: on brass
type: LOCATION
value: on ware etc
type: LOCATION
Source sentences:
text: 3 Nitric acid is used in etching designs on copper, brass, bronze ware etc.
text: 3 Nitric acid is used in etching designs on copper, brass, bronze ware