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: elements 
Words: fire, earth, water, blaze, recruit
answer:
recruit


question:
Category: window material 
Words: glass, coating, panel, spatula, lead
answer:
spatula


question:
Category: aesthetic characteristic 
Words: even, deal, ghostly, well, fair
answer:

deal