51204
In Central America , domesticated sweet potatoes were present at least 5,000 " years ago , with the origin of " I. batatas " possibly between the Yucatán Peninsula of Mexico and the mouth of the Orinoco River in Venezuela .
 Central America, Yucatán Peninsula, Mexico, Orinoco River, Venezuela
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Central America, Yucatán Peninsula, Mexico, Orinoco River, Venezuela