Assertion: zinc | /r/ObjectUse | used in rome
Facets:
value: as a component of brass
type: MANNER
Source sentences:
text: Zinc was used in Rome and China more than 2000 years ago as a component of brass (see What on Earth winter 2003 issue, zinc-copper alloy).
text: Zinc (Zn) was used in Rome and China more than 2000 years ago as a component of brass which is a zinc-copper alloy.