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: measurement unit
Words: centimeter, leg, mile, meter, foot

SOLUTION: leg

PROBLEM: Category: direction
Words: descending, below, up, emotional supports, down

SOLUTION:
emotional supports