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.

[EX Q]: melancholy, descending, emotionalities, emotional, down
[EX A]: descending

[EX Q]: cool, unruffled, funny, chill, ethical
[EX A]: chill

[EX Q]: cold, lift, autumn, fall, winter
[EX A]:
lift