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.

Ex Input:
Category: police punishment 
Words: jail, fine, bright, arrest, flyaway

Ex Output:
bright


Ex Input:
Category: ocean 
Words: current, data sets, main, sea, wave

Ex Output:
data sets


Ex Input:
Category: outdoor sport activity 
Words: camp, climbing, fish, wrestle, sea turtle

Ex Output:

sea turtle