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: aesthetic characteristic 
Words: ghostly, milky, windy, fair, texture
answer:
windy


question:
Category: animal 
Words: cockroach, leap, drive, swim, fly
answer:
drive


question:
Category: mode of transportation 
Words: bee, jog, train, fly, glide
answer:

bee