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.

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

Category: location (proximity) 
Words: near, close, gated, bordering, on top of
gated

Category: weather 
Words: 70, tangle, windy, balanced, fair

balanced