Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Input: Consider Input: Category: moral characteristic 
Words: loyal, alright, fair, unprejudiced, 70

Output: 70


Input: Consider Input: Category: bird 
Words: davit, egret, heron, crane, swift

Output: davit


Input: Consider Input: Category: type of rigidity 
Words: unyielding, firm, amalgamated, inflexible, resistant


Output: amalgamated