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: construction 
Words: windlass, crane, hoist, digger, upraise

SOLUTION: hoist

PROBLEM: Category: police punishment 
Words: probation, suspension, jail, fine, attractive

SOLUTION: attractive

PROBLEM: Category: corporate 
Words: ceo, concerted, common, firm, hard

SOLUTION:
hard