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Initial farming of white yam progressed into millet and sorghum , and before 3000 BC the domestication of African oil palm improved the groups ' nutrition and allowed for expansion of the local populations .
 plant: millet; plant: sorghum; plant: African oil palm
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: millet, sorghum, African oil palm 
Answer:
 plant: millet; plant: sorghum; plant: African oil palm