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.

Example Input: Category: bird 
Words: crane, sandpiper, hoist, windlass, goose
Example Output: windlass

Example Input: Category: emotional display 
Words: buck, identity, culture, fawn, pester
Example Output: buck

Example Input: Category: moral characteristic 
Words: honorable, dishonest, texture, trustworthy, fair
Example Output:
texture