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:
fair, dishonest, make the grade, unjust, well

Ex Output:
make the grade


Ex Input:
current, wave, whirlpool, sea, data sets

Ex Output:
data sets


Ex Input:
whisky, canasta, vodka, rum, gin

Ex Output:

canasta