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: pick, fret, string, fingerpick, sad

Output: sad


Input: Consider Input: blow, waste away, fritter, dally, croquet

Output: croquet


Input: Consider Input: forward, emotional supports, down, emotional state, ashamed


Output: forward