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: alcoholic drinks 
Words: wine, rum, bridge, tonic, gin

Ex Output:
bridge


Ex Input:
Category: kitchenware 
Words: metal, glass, knifer, dish, cup

Ex Output:
metal


Ex Input:
Category: alcoholic drinks 
Words: tequila, bourbon, beer, gin, uno

Ex Output:

uno


