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: shark, dolphin, fish, hunting, cat

SOLUTION: hunting

PROBLEM: Category: bird 
Words: crane, hoist, egret, tackle, ostrich

SOLUTION: hoist

PROBLEM: Category: animal 
Words: waggle, fly, grasshopper, jog, pounce

SOLUTION:
jog