Assertion: ore's silver | /r/HasProperty | removed
Facets:
value: from the lead
type: OTHER
Source sentences:
text: Many of the Roman lead ingots were inscribed "Ex Arg" or "Ex Argent" to signify that the silver had been removed from the lead.
text: Metallic silver and gold are removed and recovered economically by means of the Parkes process, in which zinc is added to lead.