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: bird 
Words: concrete pourer, flamingo, egret, crane, duck
answer:
concrete pourer


question:
Category: bird 
Words: crane, sandpiper, hoist, windlass, goose
answer:
windlass


question:
Category: police punishment 
Words: firstrate, fine, probation, alright, jail
answer:

alright