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: blue, wave, current, timely, drink

SOLUTION: timely

PROBLEM: deck, check, joker, board, bridge

SOLUTION: bridge

PROBLEM: combined, unbending, streamline, united, firm

SOLUTION:
unbending