Assertion: sugar cane | /r/CapableOf | spread throughout southern united states
Facets:
value: because of the slave trade
type: CAUSE
value: because of human migration
type: CAUSE
Source sentences:
text: Sugar cane is a subtropical/tropical grass that originated in Papua, New Guinea and spread throughout Southeast Asia, India, the Mediterranean, the Caribbean, Hawaii and the southern United States because of human migration and the slave trade.