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

Category: fried food 
Words: sweet roll, seperate, fritter, dunker, dumpling
seperate

Category: chocolate food 
Words: cupcake, pudding, wrongful, fudge, cookies

wrongful