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

Category: activity 
Words: spend, divide, apple, whittle, fritter
apple

Category: type of rigidity 
Words: inflexible, tough, taut, firm, leverage

leverage