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: condominium, duplex, studio, flat, level

Output: level


Input: Consider Input: firm, shareholders, common, alignment, taut

Output: taut


Input: Consider Input: blt, bar, dagwood, hoagie, club


Output: bar