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: fearful, content, substance, program, thing

SOLUTION: fearful

PROBLEM: backward, south, down, forward, shameful

SOLUTION: shameful

PROBLEM: steam roller, pelican, crane, upraise, windlass

SOLUTION:
pelican