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: mode of transportation 
Words: bee, swim, fly, car, walk
bee

Category: location (proximity) 
Words: closer, close, adjacent, gated, right there
gated

Category: moral characteristic 
Words: fair, dishonest, make the grade, unjust, well

make the grade