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: type of sandwich 
Words: grilled cheese, french toast, outing, burger, club

SOLUTION: outing

PROBLEM: Category: animal 
Words: swim, dive, fly, car, bee

SOLUTION: car

PROBLEM: Category: temperature 
Words: warm, relaxing, scorching, calm, cool

SOLUTION:
calm