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: computers 
Words: download, file, order office supplies, document, motherboard
order office supplies

Category: mode of transportation 
Words: beetle, fly, soar, bus, car
beetle

Category: baby animals 
Words: identity, fawn, kid, kitten, woods

identity