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: down, emotional upsets, disgusted, shameful, sliding
answer:
sliding


question:
Category: aesthetic characteristic 
Words: medium, just, light, ghostly, fair
answer:
just


question:
Category: mode of transportation 
Words: bee, swim, soar, fly, wave
answer:

bee