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: location (proximity) 
Words: on top of, touching, finished for the day, close, right there
finished for the day

Category: outdoor sport activity 
Words: dog, swim, hike, hiking, fish
dog

Category: aesthetic characteristic 
Words: fair, size, medium, dishonest, level

dishonest