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: shady activities 
Words: banned, replace, smear, chocolate cake, fudge

Ex Output:
chocolate cake


Ex Input:
Category: weather 
Words: 70, sunny, equitable, fair, tangle

Ex Output:
equitable


Ex Input:
Category: ocean 
Words: tide, current, flow, detests, whirlpool

Ex Output:

detests