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:
equitable, just, fair, loyal, even

Ex Output:
even


Ex Input:
cold, deal, make the grade, unprejudiced, fair

Ex Output:
unprejudiced


Ex Input:
ostrich, davit, crane, steam roller, upraise

Ex Output:

ostrich