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.
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Question: Category: poker 
Words: blind, suits, fold, deck, canvas

Answer: canvas


Question: Category: geographical property 
Words: horizontal, hotel, flat, lined, smooth

Answer: hotel


Question: Category: accomodation 
Words: plane, hotel, paved, level, flat

Answer:
plane