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: employment activity 
Words: promote, ice, retire, ban, fire

SOLUTION: ice

PROBLEM: Category: emotional status 
Words: concerned, board, nervous, emotional, fret

SOLUTION: board

PROBLEM: Category: physical activity 
Words: squat, dodge, duck, sprint, goose

SOLUTION:
goose