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.

Example Input: sugar, angular momentum, large, area, fat
Example Output: sugar

Example Input: tide, belated, signal, current, jetstream
Example Output: belated

Example Input: climb, equinox, summer, fall, hiems
Example Output:
climb