You will be presented with triplets of objects, which will be assigned to the keys X, O, and Z.
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.

X: airplane, O: eraser, and Z: puffin. You press <<O>>.
X: koala, O: straw, and Z: neck. You press <<X>>.
X: oven, O: pearl, and Z: knitting. You press <<X>>.
X: lasagna, O: organ, and Z: syrup. You press <<O>>.
X: hearing aid, O: walker, and Z: flamethrower. You press <<Z>>.
X: tongs, O: flag, and Z: cranberry. You press <<O>>.
X: snack, O: hairspray, and Z: knife. You press <<O>>.
X: cleat, O: stair, and Z: mullet. You press <<Z>>.
X: vise, O: submarine, and Z: gorilla. You press <<Z>>.
X: watermelon, O: jeans, and Z: flypaper. You press <<O>>.
X: cloak, O: dessert, and Z: ballot box. You press <<O>>.
X: tupperware, O: airplane, and Z: peppermint. You press <<O>>.
X: air pump, O: dough, and Z: couch. You press <<X>>.
X: tank, O: vulture, and Z: grass. You press <<X>>.
X: barrel, O: gurney, and Z: mannequin. You press <<X>>.
X: cocoon, O: soap, and Z: ferris wheel. You press <<Z>>.
X: ski lift, O: hamburger, and Z: screw. You press <<O>>.
X: pencil, O: sauerkraut, and Z: faucet. You press <<X>>.
X: phone booth, O: lemonade, and Z: motherboard. You press <<O>>.
X: clover, O: turnstile, and Z: mulch. You press <<X>>.
X: syrup, O: bun, and Z: chalk. You press <<Z>>.
X: kayak, O: visor, and Z: cockroach. You press <<Z>>.
X: flagpole, O: sofa bed, and Z: rudder. You press <<X>>.
X: hotplate, O: ukulele, and Z: eyedropper. You press <<X>>.
X: poodle, O: staple gun, and Z: alligator. You press <<O>>.
X: dip, O: tree, and Z: kaleidoscope. You press <<X>>.
X: barbed wire, O: mint, and Z: fire pit. You press <<O>>.
X: beaker, O: card, and Z: eggshell. You press <<O>>.
X: coal, O: eel, and Z: dresser. You press <<Z>>.
X: cleaver, O: coffee table, and Z: periscope. You press <<X>>.
X: container, O: clipper, and Z: potholder. You press <<Z>>.
X: buoy, O: wood, and Z: feather. You press <<X>>.
X: sponge, O: dryer, and Z: leech. You press <<X>>.
X: poinsettia, O: abacus, and Z: food processor. You press <<X>>.
X: mashed potato, O: tarp, and Z: dolly. You press <<X>>.
X: tuxedo, O: acorn, and Z: hula hoop. You press <<O>>.
X: shower, O: stair, and Z: hood. You press <<Z>>.
X: block, O: playpen, and Z: chandelier. You press <<Z>>.
X: hamster, O: compass, and Z: pastry. You press <<O>>.
X: timer, O: scaffolding, and Z: metal detector. You press <<O>>.
X: snowball, O: lunchbox, and Z: spacesuit. You press <<Z>>.
X: octopus, O: ice, and Z: roller coaster. You press <<Z>>.
X: watering can, O: rake, and Z: sandal. You press <<Z>>.
X: candy, O: blind, and Z: light switch. You press <<X>>.
X: skateboard, O: hammer, and Z: handkerchief. You press <<Z>>.
X: tostada, O: mitten, and Z: stick. You press <<X>>.
X: veil, O: alpaca, and Z: corkscrew. You press <<O>>.
X: fan, O: blouse, and Z: cotton candy. You press <<X>>.
X: hamster, O: jet, and Z: snail. You press <<O>>.
X: kilt, O: cake mix, and Z: twig. You press <<X>>.
X: hard disk, O: leash, and Z: ballot box. You press <<O>>.
X: chest, O: catfish, and Z: pet food. You press <<X>>.
X: rolling pin, O: knot, and Z: hairbrush. You press <<X>>.
X: latch, O: cocktail, and Z: hatbox. You press <<O>>.
X: pinecone, O: station wagon, and Z: bank. You press <<O>>.
X: skewer, O: yak, and Z: jackhammer. You press <<O>>.
X: squirrel, O: sea urchin, and Z: cougar. You press <<O>>.
X: anklet, O: crucifix, and Z: face. You press <<X>>.
X: garbage truck, O: accordion, and Z: milk. You press <<Z>>.
X: eel, O: locker, and Z: jump rope. You press <<O>>.
X: teabag, O: poster, and Z: marmalade. You press <<O>>.
X: chandelier, O: solar panel, and Z: football helmet. You press <<O>>.
X: wafer, O: carrot, and Z: peacock. You press <<Z>>.
X: mandolin, O: barrel, and Z: bullet. You press <<Z>>.
X: dish, O: toaster oven, and Z: trough. You press <<Z>>.
X: smoothie, O: tab, and Z: shopping cart. You press <<Z>>.
X: thermostat, O: paper towel, and Z: bulletin board. You press <<X>>.
X: emerald, O: cello, and Z: headrest. You press <<X>>.
X: lego, O: flipper, and Z: wrist. You press <<Z>>.
X: record player, O: sprouts, and Z: humvee. You press <<O>>.
X: mouthpiece, O: sandbox, and Z: pinecone. You press <<Z>>.
X: station wagon, O: teabag, and Z: coaster. You press <<X>>.
X: drink, O: enchilada, and Z: saucer. You press <<Z>>.
X: cougar, O: urinal, and Z: hot-air balloon. You press <<O>>.
X: easter egg, O: pepper, and Z: fruitcake. You press <<O>>.
X: checkers, O: bush, and Z: stuffing. You press <<O>>.
X: flashbulb, O: potholder, and Z: videocassette. You press <<O>>.
X: satellite, O: wrapping paper, and Z: rhubarb. You press <<Z>>.
X: abacus, O: shoehorn, and Z: mistletoe. You press <<Z>>.
X: jeep, O: penguin, and Z: sundae. You press <<X>>.
X: air pump, O: xylophone, and Z: lantern. You press <<Z>>.
X: shawl, O: turntable, and Z: squirrel. You press <<O>>.
X: yak, O: stingray, and Z: gyro. You press <<O>>.
X: eyedropper, O: parsley, and Z: rocking horse. You press <<Z>>.
X: tee, O: whale, and Z: lollipop. You press <<O>>.
X: hash, O: porcupine, and Z: chipmunk. You press <<X>>.
X: sled, O: earwig, and Z: jukebox. You press <<O>>.
X: compost, O: pinwheel, and Z: shrimp. You press <<O>>.
X: warthog, O: cantaloupe, and Z: uniform. You press <<Z>>.
X: snow, O: coal, and Z: odometer. You press <<Z>>.
X: knot, O: column, and Z: lettuce. You press <<Z>>.
X: sandpaper, O: hawk, and Z: torch. You press <<O>>.
X: knife, O: bonnet, and Z: wax paper. You press <<Z>>.
X: pin, O: poker, and Z: oven. You press <<Z>>.
X: flashlight, O: leopard, and Z: reel. You press <<O>>.
X: coaster, O: banner, and Z: fish. You press <<O>>.
X: jellyfish, O: saucer, and Z: jumpsuit. You press <<Z>>.
X: cream, O: golf cart, and Z: okra. You press <<X>>.
X: goggles, O: grits, and Z: kale. You press <<X>>.
X: poodle, O: juice, and Z: thimble. You press <<X>>.
X: cockatoo, O: espresso, and Z: fire pit. You press <<X>>.
X: wire cutters, O: boat, and Z: duffel bag. You press <<X>>.
X: racehorse, O: grape, and Z: rope. You press <<O>>.
X: fur coat, O: hatbox, and Z: pothole. You press <<X>>.
X: goalpost, O: boulder, and Z: salami. You press <<X>>.
X: leash, O: chopsticks, and Z: cake mix. You press <<O>>.
X: chute, O: stapler, and Z: desk. You press <<X>>.
X: paddle, O: ravioli, and Z: camel. You press <<X>>.
X: hovercraft, O: envelope, and Z: lip balm. You press <<X>>.
X: mixer, O: shutter, and Z: spark plug. You press <<X>>.
X: water heater, O: dolphin, and Z: pie. You press <<Z>>.
X: birthday cake, O: hourglass, and Z: panda. You press <<O>>.
X: flower, O: shield, and Z: skirt. You press <<O>>.
X: toilet paper, O: peppermint, and Z: glove. You press <<O>>.
X: moss, O: blinder, and Z: pizza. You press <<X>>.
X: tube top, O: floss, and Z: pitchfork. You press <<Z>>.
X: sandbag, O: bonsai, and Z: thumbtack. You press <<O>>.
X: weasel, O: worm, and Z: croissant. You press <<Z>>.
X: pipe, O: torpedo, and Z: velcro. You press <<Z>>.
X: blanket, O: cooler, and Z: cassette. You press <<X>>.
X: star fruit, O: ladle, and Z: walker. You press <<X>>.
X: sheet, O: hatbox, and Z: ketchup. You press <<X>>.
X: windsock, O: syrup, and Z: porthole. You press <<O>>.
X: tattoo, O: lamppost, and Z: oilcan. You press <<O>>.
X: log, O: duckling, and Z: shower. You press <<Z>>.
X: avocado, O: stilt, and Z: soccer ball. You press <<X>>.
X: creme brulee, O: crucifix, and Z: cordon bleu. You press <<O>>.
X: turnstile, O: matchbox, and Z: bra. You press <<X>>.
X: roller, O: chicken, and Z: rain gauge. You press <<X>>.
X: bonsai, O: spear, and Z: reel. You press <<X>>.
X: bologna, O: pug, and Z: boat. You press <<Z>>.
X: fondue, O: slide, and Z: glass. You press <<O>>.
X: padlock, O: vulture, and Z: hippopotamus. You press <<X>>.
X: stake, O: pants, and Z: sand. You press <<Z>>.
X: memory stick, O: pine tree, and Z: weed. You press <<X>>.
X: patch, O: tongue, and Z: chest. You press <<X>>.
X: gauge, O: police car, and Z: groundhog. You press <<Z>>.
X: fire pit, O: bookmark, and Z: filter. You press <<O>>.
X: football, O: flyswatter, and Z: map. You press <<O>>.
X: teddy bear, O: groundhog, and Z: jetski. You press <<Z>>.
X: rag, O: bowl, and Z: slipper. You press <<O>>.
X: bison, O: swordfish, and Z: scallop. You press <<X>>.
X: anchor, O: bell, and Z: pumpkin. You press <<Z>>.
X: panther, O: christmas tree, and Z: scanner. You press <<X>>.
X: drill, O: snorkel, and Z: beer. You press <<Z>>.
X: seaplane, O: cornhusk, and Z: wheat. You press <<X>>.
X: washcloth, O: lip balm, and Z: wing. You press <<Z>>.
X: belt, O: cream cheese, and Z: dogfood. You press <<X>>.
X: bowler hat, O: backscratcher, and Z: blowfish. You press <<O>>.
X: lion, O: stamp, and Z: diskette. You press <<X>>.
X: bed, O: blowfish, and Z: gourd. You press <<X>>.
X: walnut, O: wine bottle, and Z: radio. You press <<Z>>.
X: chick, O: lizard, and Z: eyeliner. You press <<Z>>.
X: piano, O: mitten, and Z: washcloth. You press <<X>>.
X: tube top, O: baseball, and Z: vulture. You press <<Z>>.
X: hopscotch, O: quiche, and Z: meatball. You press <<X>>.
X: sandwich, O: bench, and Z: prune. You press <<O>>.
X: koala, O: playing card, and Z: mold. You press <<O>>.
X: sand, O: food processor, and Z: stereo. You press <<X>>.
X: jackhammer, O: camera lens, and Z: metronome. You press <<Z>>.
X: dryer, O: pepperoni, and Z: walnut. You press <<X>>.
X: daisy, O: worm, and Z: drill. You press <<O>>.
X: pickle, O: screwdriver, and Z: telegraph. You press <<X>>.
X: fire pit, O: rollerblade, and Z: float. You press <<O>>.
X: egg roll, O: awning, and Z: praying mantis. You press <<X>>.
X: clipper, O: motherboard, and Z: ginger. You press <<O>>.
X: paperweight, O: ring, and Z: noose. You press <<X>>.
X: paperweight, O: funnel, and Z: stove. You press <<X>>.
X: torso, O: computer, and Z: ambulance. You press <<X>>.
X: milkshake, O: snowsuit, and Z: flip flop. You press <<X>>.
X: aardvark, O: scorpion, and Z: buffet. You press <<Z>>.
X: phone, O: baseball bat, and Z: test tube. You press <<X>>.
X: switch, O: go-kart, and Z: reel. You press <<X>>.
X: quesadilla, O: sticker, and Z: trigger. You press <<Z>>.
X: kangaroo, O: windsock, and Z: hard disk. You press <<Z>>.
X: vial, O: straightjacket, and Z: hand. You press <<X>>.
X: corn, O: handprint, and Z: microwave. You press <<O>>.
X: wedge, O: place mat, and Z: ticktacktoe. You press <<X>>.
X: seafood, O: bison, and Z: pipe. You press <<Z>>.
X: hoe, O: bagel, and Z: can opener. You press <<O>>.
X: duct tape, O: tadpole, and Z: sandpaper. You press <<O>>.
X: sleeping bag, O: grenade, and Z: jeans. You press <<Z>>.
X: powder, O: album, and Z: bandage. You press <<O>>.
X: tortellini, O: drumstick, and Z: robe. You press <<O>>.
X: bean, O: perfume, and Z: manhole. You press <<X>>.
X: sundae, O: whipped cream, and Z: sawhorse. You press <<Z>>.
X: revolver, O: clipper, and Z: extinguisher. You press <<O>>.
X: ping-pong table, O: airplane, and Z: goalpost. You press <<O>>.
X: coral, O: battery, and Z: cane. You press <<X>>.
X: floss, O: bucket, and Z: bus. You press <<Z>>.
X: sponge, O: gauge, and Z: berry. You press <<O>>.
X: flypaper, O: shelf, and Z: frog. You press <<O>>.
X: salad, O: kneepad, and Z: trowel. You press <<X>>.
X: popcorn, O: peach, and Z: stump. You press <<Z>>.
X: tape recorder, O: vase, and Z: grinder. You press <<X>>.
X: earplug, O: coffee bean, and Z: nightshirt. You press <<O>>.
X: basil, O: fountain pen, and Z: quiche. You press <<O>>.
X: aluminum foil, O: bulldozer, and Z: trident. You press <<O>>.
X: cup, O: watermelon, and Z: mold. You press <<X>>.
X: coyote, O: pudding, and Z: fishhook. You press <<Z>>.
X: scale, O: rudder, and Z: firecracker. You press <<X>>.
X: windsock, O: computer, and Z: basil. You press <<O>>.
X: pie, O: doily, and Z: viewfinder. You press <<Z>>.
X: hot-air balloon, O: pearl, and Z: altar. You press <<Z>>.
X: swimming pool, O: wallet, and Z: mascara. You press <<O>>.
X: pine needle, O: bolt, and Z: lens. You press <<X>>.
X: inhaler, O: turtle, and Z: rocking chair. You press <<Z>>.
X: crow, O: jigsaw puzzle, and Z: taffy. You press <<Z>>.
X: bikini, O: peacock, and Z: peppermint. You press <<Z>>.
X: bulletin board, O: shutter, and Z: pedometer. You press <<O>>.
X: golf club, O: makeup, and Z: grain. You press <<X>>.
X: torpedo, O: shopping basket, and Z: game. You press <<Z>>.
X: pennant, O: swab, and Z: mast. You press <<O>>.
X: scraper, O: backdrop, and Z: pulpit. You press <<X>>.
X: hopscotch, O: burrito, and Z: granite. You press <<O>>.
X: bacon, O: stapler, and Z: eggplant. You press <<O>>.
X: washing machine, O: saddle, and Z: bouquet. You press <<O>>.
X: heater, O: beaker, and Z: candy bar. You press <<Z>>.
X: chalk, O: coffeemaker, and Z: speaker. You press <<O>>.
X: clove, O: tuning fork, and Z: ferret. You press <<O>>.
X: spur, O: generator, and Z: seesaw. You press <<O>>.
X: lightbulb, O: ink, and Z: peeler. You press <<O>>.
X: soldering iron, O: car seat, and Z: volleyball. You press <<Z>>.
X: jeans, O: cherry, and Z: scissors. You press <<O>>.
X: can, O: pistachio, and Z: crossbow. You press <<O>>.
X: trashcan, O: gumball, and Z: stake. You press <<O>>.
X: turkey, O: wetsuit, and Z: snowman. You press <<O>>.
X: sugar cube, O: whipped cream, and Z: crane. You press <<Z>>.
X: snowman, O: yo-yo, and Z: chain. You press <<Z>>.
X: shower, O: bulletproof vest, and Z: headscarf. You press <<X>>.
X: glass, O: needle, and Z: knee. You press <<Z>>.
X: toilet paper, O: mustache, and Z: polygraph. You press <<Z>>.
X: turnstile, O: guacamole, and Z: toilet paper. You press <<X>>.
X: frame, O: seed, and Z: insole. You press <<X>>.
X: bow, O: rubber band, and Z: mail. You press <<Z>>.
X: bulletproof vest, O: dishwasher, and Z: tugboat. You press <<O>>.
X: calculator, O: tag, and Z: extinguisher. You press <<X>>.
X: walker, O: knitting, and Z: trolley. You press <<O>>.
X: crab, O: blanket, and Z: buckle. You press <<O>>.
X: cordon bleu, O: biscuit, and Z: turf. You press <<Z>>.