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: poker 
Words: fold, queen, deck, galley, call

SOLUTION: galley

PROBLEM: Category: ocean 
Words: current, wave, whirlpool, sea, data sets

SOLUTION: data sets

PROBLEM: Category: boxing terminology 
Words: ring, deck, joker, corner, tko

SOLUTION:
joker