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: crying, truss rod, angry, emotional supports, fret

Output: truss rod


Input: Consider Input: ice, let go, fire, sack, replace

Output: ice


Input: Consider Input: goose, excavator, sandpiper, mallet, crane


Output: excavator