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: ocean 
Words: signal, timely, brine, flow, current

Output: timely


Input: Consider Input: Category: direction 
Words: up, down, sliding, shameful, right

Output: shameful


Input: Consider Input: Category: store status 
Words: beside, finished for the day, running., close, gated


Output: beside