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: organize, sort mail, fax, file, text

SOLUTION: text

PROBLEM: Category: activity 
Words: fritter, waste, pie, waste away, lollygag

SOLUTION: pie

PROBLEM: Category: personal characteristic 
Words: relaxed, warm, unflappalbe, classy, cool

SOLUTION:
warm