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: nutritional value 
Words: sugar, calories, iron, fat, area
area

Category: construction 
Words: hoist, crane, excavator, egret, derrick
egret

Category: police punishment 
Words: wispy, money, fine, level, suspension

level