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: weather 
Words: brisk, ghostly, windy, fair, deal

SOLUTION: ghostly

PROBLEM: Category: police punishment 
Words: fine, prime, firstrate, comfortable, ticket

SOLUTION: comfortable

PROBLEM: Category: corporate 
Words: resistant, firm, corporation, amalgamated, alignment

SOLUTION:
resistant