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: motherboard, schedule appointments, schedule, file, type

SOLUTION: motherboard

PROBLEM: bored, amp, board, fret, truss rod

SOLUTION: bored

PROBLEM: club, doorstep, blt, group, dagwood

SOLUTION:
group