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 Input:
variety, fair, warm, tangle, mild

Ex Output:
variety


Ex Input:
social, love, fawn, follow, kid

Ex Output:
kid


Ex Input:
amp, emotionalities, output cord, fret, pick

Ex Output:

emotionalities