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.

Input: Consider Input: jog, fly, swim, run, drive

Output: run


Input: Consider Input: remorseful, flat, melancholy, down, shameful

Output: flat


Input: Consider Input: current, early, belated, data sets, jetstream


Output: jetstream