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: elements 
Words: ban, fire, combustion, ground, flame

SOLUTION: ban

PROBLEM: Category: emotional status 
Words: decent, alert, fine, happy, jail

SOLUTION:
jail