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: moral characteristic 
Words: milky, fair, ok, loyal, unprejudiced

SOLUTION: milky

PROBLEM: Category: shady activities 
Words: truffles, lie, falsehood, wrongful, fudge

SOLUTION: truffles

PROBLEM: Category: geographical property 
Words: flat, mountain, studio, hill, plane

SOLUTION:
studio