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: output cord, fret, notes, frustrated, chord

Output: frustrated


Input: Consider Input: merchandise, specialty, tools, content, angry

Output: angry


Input: Consider Input: dangle, bats, bus, ant, fly


Output: bus