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: weather 
Words: tangle, ghostly, fair, raining, sunny
answer:
ghostly


question:
Category: type of sandwich 
Words: grilled cheese, french toast, outing, burger, club
answer:
outing


question:
Category: animal 
Words: spider, beetle, fly, bats, bus
answer:

bus