Assertion: corn | /r/HasProperty | domesticated by aztec and mayan indians
Facets:
value: in mexico
type: LOCATION
value: from a wild grain
type: OTHER
value: in central america
type: LOCATION
Source sentences:
text: A member of the grass family, it was first domesticated from a wild grain several thousand years ago by Aztec and Mayan Indians in Mexico and Central America.