TASK DEFINITION: Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.
PROBLEM: sustainability, firm, amalgamated, combined, rigged

SOLUTION: rigged

PROBLEM: level, corner, chips, deck, caution

SOLUTION: chips

PROBLEM: board, deck, joker, tko, cards

SOLUTION:
tko