22510
A species-wide study showed that by preference where available five species were the most regularly selected prey , namely the greater kudu , Thomson 's gazelle , impala , bushbuck and blue wildebeest .
 Thomson 's gazelle, impala, bushbuck
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:
 Thomson 's gazelle, impala, bushbuck