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: physical property 
Words: large, obese, fat, chunky, fiber
fiber

Category: type of sandwich 
Words: french toast, community, club, burger, dagwood
community

Category: physical property 
Words: sugars, obese, big boned, fat, pasty

sugars