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: social gathering 
Words: group, dance hall, clan, club, dagwood

SOLUTION: dagwood

PROBLEM: Category: secretary duty 
Words: answer calls, image, organize, file, correspondence

SOLUTION: image

PROBLEM: Category: social gathering 
Words: bar, picnic, burger, club, cinema

SOLUTION:
burger