Assertion: heavy metal | /r/HasProperty | zinc
Facets:
value: usually
type: DEGREE
Source sentences:
text: Heavy metals are present in ground water and are usually Nickel, Lead, Cadmium and Zinc.
text: The heavy metals which are included in APIS are cadmium, chromium, copper, mercury, lead, zinc, arsenic, boron and the platinum group metals, which comprises platinum, palladium, rhodium, ruthenium, osmium, and iridium.
text: The three heavy metals which commonly poison birds are lead, zinc, and iron.