5859
The " evolution of the horse " , a mammal of the family Equidae , occurred over a geologic time scale of 50 million years , transforming the small , dog-sized , forest-dwelling " Eohippus " into the modern horse .
 animal: mammal; animal: Eohippus; animal: 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: mammal, Eohippus, horse 
Answer:
 animal: mammal; animal: Eohippus; animal: horse