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: ocean 
Words: flow, current, course, moon, dastards

SOLUTION: dastards

PROBLEM: Category: moral characteristic 
Words: decent, impartial, light, fair, dishonest

SOLUTION: light

PROBLEM: Category: weather 
Words: windy, cold, cool, fair, make the grade

SOLUTION:
cool