122451
However , it has one of the greatest nonpoint source pollution problems in the state due in large part to runoff from the 3,500 farms , livestock operations and dairies in the watershed .
 livestock
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:
 livestock