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A " tip-up " is a device used while " ice fishing " to suspend live or frozen bait at a set depth through a hole drilled in the ice with an auger , and detect when a fish strikes , without having to be in contact with this piece of gear .
 fish
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:
 fish