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: errands, schedule appointments, image, make coffee, file

SOLUTION: image

PROBLEM: Category: police punishment 
Words: wispy, fine, probation, calm, prime

SOLUTION: calm

PROBLEM: Category: social gathering 
Words: dance hall, cinema, club, team, hamburger

SOLUTION:
hamburger