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:
fritter, fried, cake, patty, seperate

Ex Output:
seperate


Ex Input:
jog, waggle, pounce, fly, bats

Ex Output:
jog


Ex Input:
weenie, wiener, meat, matter of fact, frank

Ex Output:

matter of fact