Assertion: rubber | /r/HasProperty | discovered by european explorers
Facets:
value: in the americas
type: LOCATION
Source sentences:
text: Rubber, which derives from plants that grow best in an equatorial climate, was first discovered by European explorers in the Americas, where Christopher Columbus encountered Mayan indians using water-proof shoes and bottles made from the substance.
text: Rubber, which derives from plants that grow best in an equatorial climate, was first discovered by European explorers in the Americas, where Christopher Columbus encountered Mayan indians using water-proof shoes and bottles made from the substance.