instruction:
Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
question:
Category: physical activity 
Words: sprint, get down, cow, duck, bow
answer:
cow


question:
Category: bird 
Words: neck, tackle, derrick, crane, steam roller
answer:
steam roller


question:
Category: personal characteristic 
Words: relaxed, warm, assured, level, cool
answer:

warm