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: window material 
Words: glass, coating, panel, spatula, lead

Answer: spatula


Question: Category: physical activity 
Words: bend, winter, fall, climb, exercise

Answer: winter


Question: Category: emotional display 
Words: follow, doe, suppressed, culture, fawn

Answer:
doe