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: emotional status 
Words: high quality, fine, annoyed, relaxed, ok
high quality

Category: animal 
Words: shark, dolphin, fish, hunting, cat
hunting

Category: secretary duty 
Words: schedule, file, organize, space, order office supplies

space