102178
Maize has become a staple food in many parts of the world , with the total production of maize surpassing that of wheat or rice .
 wheat, rice
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 wheat, rice