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: fish, waggle, fly, dangle, glide

SOLUTION: glide

PROBLEM: Category: physical activity 
Words: summer, roll, plummet, fall, exercise

SOLUTION: summer

PROBLEM: Category: weather 
Words: cold, fair, raining, balanced, deal

SOLUTION:
balanced