TASK DEFINITION: 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.
PROBLEM: Category: emotional status 
Words: ashamed, down, emotional upsets, disgusted, ground

SOLUTION: ground

PROBLEM: Category: physical activity 
Words: stoop, crouch, bow, duck, dog

SOLUTION: dog

PROBLEM: Category: aesthetic characteristic 
Words: hearing, fine, pretty, detailed, high quality

SOLUTION:
hearing