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: physical activity 
Words: bend, winter, fall, climb, exercise
winter

Category: date status 
Words: data sets, tide, late, detestings, current
tide

Category: personal characteristic 
Words: warm, cool, assured, ethical, funny

warm