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The type of terrain is also an important factor : wide open , flat land is generally best for horses of a Thoroughbred type , while rockier , more unforgiving land may be best suited by a draft-cross or tougher breed .
 animal: Thoroughbred
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: Thoroughbred 
Answer:
 animal: Thoroughbred