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: window material 
Words: plastic, woodwork, glass, bowl, spyhole

Answer: bowl


Question: Category: kitchenware 
Words: glass, colander, dish, plate, panel

Answer: panel


Question: Category: aesthetic characteristic 
Words: ghostly, even, tangle, fair, size

Answer:
tangle


