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.

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

Category: nutritional value 
Words: heavy, fat, protein, obese, carbs
obese

Category: location (proximity) 
Words: beside, closest, close, adjacent, shut

shut