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: emotional upsets, pick, emotional state, fret, emotional supports

Output: pick

Input: Consider Input: fat, ugly, sugar, salt, protein

Output: ugly

Input: Consider Input: steam roller, goose, parrot, crane, tackle
Output: steam roller