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: boats 
Words: lifeline, stern, fold, deck, rudder

SOLUTION: fold

PROBLEM: Category: direction 
Words: remorseful, south, descending, downward, down

SOLUTION: remorseful

PROBLEM: Category: moral characteristic 
Words: impartial, unjust, variety, dishonest, fair

SOLUTION:
variety