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: shady activities 
Words: replace, unwarranted, pie, fudge, unlicensed

Output: pie


Input: Consider Input: Category: consumer product 
Words: content, books, thing, program, jealous

Output: jealous


Input: Consider Input: Category: mode of transportation 
Words: bus, fly, flutter, swim, ant


Output: ant