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: secretary duty 
Words: schedule, file, answer calls, correspondence, ram

SOLUTION: ram

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

SOLUTION: up to the moment

PROBLEM: Category: physical activity 
Words: lion, get down, bend, duck, jog

SOLUTION:
lion