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: food 
Words: frank, entree, goodies, concise, wiener
concise

Category: moral characteristic 
Words: unprejudiced, unjust, milky, ok, fair
milky

Category: aesthetic characteristic 
Words: 70, pale, fair, light, milky

70