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: food 
Words: frank, entree, goodies, concise, wiener

Output: concise


Input: Consider Input: Category: physical property 
Words: protein, pasty, fat, thin, angular momentum

Output: protein


Input: Consider Input: Category: mode of transportation 
Words: walk, fly, flutter, jump, train


Output: jump