Assertion: arsenic | /r/AtLocation | the smelter dust
Facets:
value: from copper
type: OTHER
value: from gold
type: OTHER
Source sentences:
text: Arsenic is found in the smelter dust from copper, gold, and lead smelters, and is recovered primarily from copper refinement dust.
text: Arsenic is found of the smelter dust from copper , gold , and lead smelters, and is recovered primarily from copper refinement dust.