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: answer, answer calls, space, file, schedule

SOLUTION: space

PROBLEM: hamburger, club, discothek, lettuce, dagwood

SOLUTION: discothek

PROBLEM: dolphin, fish, canyoning, row, climbing

SOLUTION:
dolphin