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.

Ex Input:
Category: moral characteristic 
Words: unprejudiced, texture, fair, impartial, well

Ex Output:
texture


Ex Input:
Category: personal characteristic 
Words: ethical, tropical, unflappalbe, cool, optimist

Ex Output:
tropical


Ex Input:
Category: moral characteristic 
Words: honesty, loyalty, matter of fact, entree, frank

Ex Output:

entree