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: flamingo, crane, davit, pelican, derrick

Output: davit


Input: Consider Input: color, variety, well, fair, decent

Output: decent


Input: Consider Input: promote, let go, pay, heat, fire


Output: heat