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.
--------
Question: Category: outdoor sport activity 
Words: fish, hike, hunting, row, dog

Answer: dog


Question: Category: secretary duty 
Words: order office supplies, sort mail, file, program, type

Answer: program


Question: Category: emotional status 
Words: ok, alright, happy, exquisite, fine

Answer:
exquisite