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: moral characteristic 
Words: frank, stern, bun, concise, precise

SOLUTION: bun

PROBLEM: Category: date status 
Words: delayed, current, whirlpool, do tests, up to the moment

SOLUTION: whirlpool

PROBLEM: Category: secretary duty 
Words: answer calls, sort mail, file, schedule, motherboard

SOLUTION:
motherboard