Assertion: antimony | /r/HasProperty | known metal
Facets:
value: in the 17th century
type: TEMPORAL
Source sentences:
text: Antimony was a known metal in the 17th century and was likely used even earlier.
text: Antimony (Sb) is a little-known heavy metal used in a wide variety of commercial and consumer products, including batteries, bullets, children’s toys, clothing, glass, paint, and plastic bottles.