instruction:
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: emotional status 
Words: downward, unhappy, down, shameful, disgusted
answer:
downward


question:
Category: emotional status 
Words: angry, joyful, tools, fearful, content
answer:
tools


question:
Category: mode of transportation 
Words: flutter, walk, fly, run, jog
answer:

run