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: chocolate food 
Words: brownie, loosen, chocolate cake, fudge, molasses
loosen

Category: secretary duty 
Words: errands, schedule appointments, image, make coffee, file
image

Category: emotional status 
Words: worried, bored, emotional, fret, output cord

output cord