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: emotional status 
Words: fret, emotional supports, output cord, angry, concerned

SOLUTION: output cord

PROBLEM: Category: military rank 
Words: regular, major, general, soldier, cadet

SOLUTION: regular

PROBLEM: Category: personal characteristic 
Words: persistent, cool, level, scorching, funny

SOLUTION:
scorching