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: corporate 
Words: leverage, solid, firm, amalgamated, concerted

Ex Output:
solid


Ex Input:
Category: corporate 
Words: corporation, firm, alignment, taut, leverage

Ex Output:
taut


Ex Input:
Category: food 
Words: cheese, vittles, frank, weenie, blunt

Ex Output:

blunt