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: angular momentum, fat, calcium, brittleness, ugly

SOLUTION: calcium

PROBLEM: picnic, place, hoagie, discothek, club

SOLUTION:
hoagie