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: mode of transportation 
Words: spider, fly, train, jog, car

Output: spider


Input: Consider Input: Category: activity 
Words: fried, spend, whittle, waste, fritter

Output: fried


Input: Consider Input: Category: fried food 
Words: fritter, fried, cake, patty, seperate


Output: seperate