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: doorstep, community, open-faced, club, hoagie

SOLUTION: community

PROBLEM: fly, flutter, bus, drive, fish

SOLUTION: fish

PROBLEM: corner, dock, deck, sail, lifeline

SOLUTION:
corner