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.

Example Input: signal, sea, current, drink, belated
Example Output: belated

Example Input: crying, truss rod, angry, emotional supports, fret
Example Output: truss rod

Example Input: deck, caution, draw, hearts, chips
Example Output:
caution