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: computers 
Words: prepare, space, file, image, ram

SOLUTION: prepare

PROBLEM: Category: animal 
Words: goat, stingray, tiger, hike, fish

SOLUTION: hike

PROBLEM: Category: store status 
Words: open, close, running., bordering, finished for the day

SOLUTION:
bordering