85538
Corn ( maize ) , wheat , and rice – in all of their varieties – account for 87 % of all grain production worldwide .
 Corn ( maize ), 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:
 Corn ( maize ), wheat, rice