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: worried, angry, jack, fret, emotional upsets

SOLUTION: jack

PROBLEM: Category: accomodation 
Words: elevation, level, round, flat, townhome

SOLUTION: elevation

PROBLEM: Category: store status 
Words: slow, shut, closest, finished for the day, close

SOLUTION:
closest