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The lowest stud fees to breed to a grade horse or an animal of low-quality pedigree may only be $ 100 – $ 200 , but there are trade-offs : the horse will probably be unproven , and likely to produce lower-quality offspring than a horse with a stud fee that is in the typical range for quality breeding stock .
 animal: grade horse
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: grade horse 
Answer:
 animal: grade horse