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: deck, caution, suits, queen, check

SOLUTION: caution

PROBLEM: file, keys, organize, errands, correspondence

SOLUTION: keys

PROBLEM: current, dastards, early, course, data sets

SOLUTION:
course