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: kitchenware 
Words: spoon, glass, bowl, lead, cup

Output: lead


Input: Consider Input: Category: corporate 
Words: unyielding, firm, streamline, llc, private

Output: unyielding


Input: Consider Input: Category: type of rigidity 
Words: amalgamated, unyielding, solid, firm, stiff


Output: amalgamated