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.
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Question: Category: physical activity 
Words: bend, jog, get down, duck, pig

Answer: pig


Question: Category: aesthetic characteristic 
Words: ghostly, milky, windy, fair, texture

Answer: windy


Question: Category: boats 
Words: dock, crew, deck, blind, stern

Answer:
blind