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: guitar part 
Words: truss rod, fret, neck, bored, strap lock

SOLUTION: bored

PROBLEM: Category: computers 
Words: folder, text, file, ram, prepare

SOLUTION: prepare

PROBLEM: Category: emotional status 
Words: lower, emotional, down, kind, loveful

SOLUTION:
lower