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: medium, unjust, flaxen, fair, texture
Example Output: unjust

Example Input: crew, ring, deck, blocking, punch
Example Output: crew

Example Input: loyal, alright, fair, unprejudiced, 70
Example Output:
70