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: consumer product 
Words: content, panicked, file, substance, jewelry
panicked

Category: animal 
Words: bus, leap, spider, run, fly
bus

Category: emotional status 
Words: nervous, bored, emotional supports, chord, fret

chord