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: ocean 
Words: up to the moment, tide, current, jetstream, brine

SOLUTION: up to the moment

PROBLEM: Category: weather 
Words: stormy, make the grade, sunny, texture, fair

SOLUTION: texture

PROBLEM: Category: direction 
Words: south, down, descending, ashamed, lower

SOLUTION:
ashamed