TASK DEFINITION: Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.
PROBLEM: sergeant, general, standard, plain, ordinary

SOLUTION: sergeant

PROBLEM: cool, unruffled, funny, chill, ethical

SOLUTION: chill

PROBLEM: opposite of up, down, emotional upsets, miserable, unhappy

SOLUTION:
opposite of up