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: invent, smuggled, smear, fudge, pie

Ex Output:
pie


Ex Input:
Category: date status 
Words: data sets, tide, late, detestings, current

Ex Output:
tide


Ex Input:
Category: bird 
Words: flamingo, crane, goose, davit, hummingbird

Ex Output:

davit