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: aesthetic characteristic 
Words: mild, fair, texture, even, milky
answer:
mild


question:
Category: aesthetic characteristic 
Words: cool, trustworthy, milky, fair, well
answer:
trustworthy


question:
Category: bird 
Words: duck, crane, egret, pelican, hoist
answer:

hoist