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: sack, inferno, promote, empower, fire

SOLUTION: inferno

PROBLEM: Category: moral characteristic 
Words: mild, equitable, unprejudiced, trustworthy, fair

SOLUTION: mild

PROBLEM: Category: date status 
Words: current, whirlpool, timely, detestings, do tests

SOLUTION:
whirlpool