79115
A cow was a great advantage to a villager as she produced more milk than her calf needed , and her strength could be put to use as a working animal , pulling a plough to increase production of crops , and drawing a sledge , and later a cart , to bring the produce home from the field .
 animal: working animal
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: working animal 
Answer:
 animal: working animal