TASK DEFINITION: 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.
PROBLEM: Category: physical property 
Words: obese, fat, vitamin c, heavy, thin

SOLUTION: vitamin c

PROBLEM: Category: consumer product 
Words: fearful, content, merchandise, shop, program

SOLUTION: fearful

PROBLEM: Category: date status 
Words: current, late, postponed, early, brine

SOLUTION:
brine