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: secretary duty 
Words: support, type, file, software, answer
software

Category: secretary duty 
Words: folder, support, order office supplies, correspondence, file
folder

Category: moral characteristic 
Words: fair, brisk, alright, equitable, loyal

brisk