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: employment activity
Words: fire, remove, praise, inferno, replace
inferno

Category: aesthetic characteristic
Words: neat, alright, beautiful, level, fine
alright

Category: boats
Words: deck, gunwale, queen, lifeline, bridge
queen