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: geographical property 
Words: flat, horizontal, smooshed, elevation, house

SOLUTION: house

PROBLEM: Category: store status 
Words: shut, locked, near, out of service, close

SOLUTION: near

PROBLEM: Category: secretary duty 
Words: file, errands, type, folder, order office supplies

SOLUTION:
folder