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: animal 
Words: bus, leap, spider, run, fly

SOLUTION: bus

PROBLEM: Category: direction 
Words: right, descending, down, opposite of up, emotional supports

SOLUTION: emotional supports

PROBLEM: Category: chocolate food 
Words: cream, lie, pie, fudge, cake

SOLUTION:
lie