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: fret, concerned, jack, notes, amp

SOLUTION: concerned

PROBLEM: Category: employment activity 
Words: sack, inferno, promote, empower, fire

SOLUTION: inferno

PROBLEM: Category: guitar part 
Words: fret, headstock, fingerpick, jack, nervous

SOLUTION:
nervous

