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: window material 
Words: metal, handle, dish, glass, vinyl

Ex Output:
dish


Ex Input:
Category: animal 
Words: bird, fish, fly, drive, eagle

Ex Output:
drive


Ex Input:
Category: poker 
Words: queen, hearts, call, deck, gunwale

Ex Output:

gunwale