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: boxing terminology 
Words: pack, level, deck, corner, jab

SOLUTION: pack

PROBLEM: Category: animal 
Words: trap, dog, fish, tiger, horse

SOLUTION: trap

PROBLEM: Category: bird 
Words: crane, ostrich, davit, dump truck, pelican

SOLUTION:
dump truck