You will be presented with triplets of objects, which will be assigned to the keys Z, A, and X.
In each trial, please indicate which object you think is the odd one out by pressing the corresponding key.
In other words, please choose the object that is the least similar to the other two.

Z: seatbelt, A: helmet, and X: cash register. You press <<X>>.
Z: rake, A: vacuum, and X: banana. You press <<X>>.
Z: grill, A: domino, and X: octopus. You press <<X>>.
Z: ink, A: hot chocolate, and X: boy. You press <<Z>>.
Z: keyboard, A: spout, and X: hummingbird. You press <<A>>.
Z: fishbowl, A: jumpsuit, and X: walrus. You press <<A>>.
Z: paddle, A: loom, and X: earplug. You press <<Z>>.
Z: subway, A: glasses, and X: catfish. You press <<Z>>.
Z: awning, A: hole, and X: pepper. You press <<A>>.
Z: hawk, A: light switch, and X: memory stick. You press <<Z>>.
Z: first-aid kit, A: snowshoe, and X: broom. You press <<X>>.
Z: map, A: can opener, and X: awning. You press <<A>>.
Z: sled, A: seed, and X: raisin. You press <<Z>>.
Z: shell, A: footbath, and X: canvas. You press <<A>>.
Z: rifle, A: lab coat, and X: windsock. You press <<A>>.
Z: penguin, A: bomb, and X: caramel. You press <<A>>.
Z: feather, A: birdbath, and X: hovercraft. You press <<A>>.
Z: seaweed, A: bacon, and X: licorice. You press <<A>>.
Z: hay, A: prism, and X: bagpipe. You press <<A>>.
Z: roulette wheel, A: gurney, and X: stretcher. You press <<Z>>.
Z: spider web, A: hammock, and X: potpourri. You press <<X>>.
Z: toaster oven, A: potpie, and X: silverware. You press <<A>>.
Z: ski, A: trampoline, and X: checkbook. You press <<X>>.
Z: blowtorch, A: highlighter, and X: knot. You press <<X>>.
Z: mirror, A: polar bear, and X: basket. You press <<A>>.
Z: board game, A: sunglasses, and X: fountain pen. You press <<Z>>.
Z: earwig, A: catapult, and X: celery. You press <<A>>.
Z: tiger, A: leash, and X: crank. You press <<Z>>.
Z: bush, A: ice-cream cone, and X: coop. You press <<A>>.
Z: outfit, A: macadamia, and X: desk. You press <<A>>.
Z: trough, A: dustpan, and X: sweater. You press <<X>>.
Z: snowplow, A: lock, and X: mitten. You press <<A>>.
Z: robe, A: dolly, and X: dollhouse. You press <<A>>.
Z: cereal, A: comic book, and X: tortellini. You press <<A>>.
Z: keg, A: smoothie, and X: red carpet. You press <<X>>.
Z: rack, A: pancake, and X: reindeer. You press <<A>>.
Z: carriage, A: porthole, and X: hovercraft. You press <<A>>.
Z: cleaver, A: target, and X: sock. You press <<X>>.
Z: airbag, A: roadsweeper, and X: piggy bank. You press <<X>>.
Z: chain, A: slot, and X: tool. You press <<A>>.