You will be presented with triplets of objects, which will be assigned to the keys Z, R, and B.
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: ambulance, R: yacht, and B: funnel. You press <<B>>.
Z: airplane, R: nose, and B: seal. You press <<Z>>.
Z: reel, R: rug, and B: clasp. You press <<R>>.
Z: hip, R: snowboard, and B: antelope. You press <<R>>.
Z: bullet, R: metal detector, and B: briefcase. You press <<B>>.
Z: jukebox, R: tambourine, and B: quilt. You press <<B>>.
Z: hatchet, R: saltshaker, and B: petri dish. You press <<B>>.
Z: tortellini, R: mousse, and B: shoe. You press <<B>>.
Z: fireworks, R: berry, and B: straw. You press <<R>>.
Z: cornhusk, R: hatchet, and B: baseball bat. You press <<Z>>.
Z: grape, R: hay, and B: refrigerator. You press <<R>>.
Z: doghouse, R: brick, and B: mouse. You press <<R>>.
Z: air mattress, R: chihuahua, and B: red carpet. You press <<R>>.
Z: bow, R: pita, and B: trombone. You press <<B>>.
Z: shortbread, R: fishing pole, and B: tape. You press <<R>>.
Z: lava, R: chipmunk, and B: flashbulb. You press <<B>>.
Z: drumstick, R: briefcase, and B: cot. You press <<Z>>.
Z: ice cream, R: ladder, and B: mouse. You press <<Z>>.
Z: scissors, R: blouse, and B: spider. You press <<Z>>.
Z: tarantula, R: ear, and B: root. You press <<R>>.
Z: school bus, R: rifle, and B: apple. You press <<B>>.
Z: cougar, R: gutter, and B: guillotine. You press <<Z>>.
Z: jalapeno, R: mouse, and B: cushion. You press <<Z>>.
Z: bear, R: pheasant, and B: hoe. You press <<B>>.
Z: shutter, R: tarp, and B: shoe polish. You press <<B>>.
Z: dashboard, R: diamond, and B: lemonade. You press <<B>>.
Z: snowshoe, R: screen, and B: brooch. You press <<Z>>.
Z: burner, R: squid, and B: oilcan. You press <<B>>.
Z: potpourri, R: boulder, and B: pill. You press <<R>>.
Z: drain, R: bike, and B: kite. You press <<R>>.
Z: hot-water bottle, R: ice-cream cone, and B: pothole. You press <<B>>.
Z: sail, R: bathmat, and B: pole. You press <<B>>.
Z: mouse, R: locker, and B: pencil sharpener. You press <<Z>>.
Z: yacht, R: skeleton, and B: tricycle. You press <<R>>.
Z: fishbowl, R: pipe, and B: grass. You press <<B>>.
Z: prism, R: pipe, and B: blowgun. You press <<Z>>.
Z: bra, R: videogame, and B: wooden leg. You press <<R>>.
Z: sweater, R: pine needle, and B: cream cheese. You press <<Z>>.
Z: curb, R: bow, and B: backdrop. You press <<B>>.
Z: contact lens, R: quad, and B: moccasin. You press <<R>>.
Z: tack, R: ferret, and B: tiger. You press <<Z>>.
Z: webcam, R: ginger, and B: iguana. You press <<Z>>.
Z: fudge, R: kite, and B: tortilla. You press <<R>>.
Z: candelabra, R: comb, and B: insole. You press <<Z>>.
Z: motherboard, R: stethoscope, and B: ashtray. You press <<Z>>.
Z: trophy, R: blinder, and B: powder. You press <<B>>.
Z: blowfish, R: pepper mill, and B: fire pit. You press <<Z>>.
Z: perfume, R: jellyfish, and B: boa. You press <<R>>.
Z: napkin ring, R: moccasin, and B: teabag. You press <<R>>.
Z: teapot, R: praying mantis, and B: mongoose. You press <<Z>>.
Z: blindfold, R: chickpea, and B: chocolate. You press <<Z>>.
Z: toad, R: gallows, and B: bacon. You press <<R>>.
Z: cream cheese, R: trophy, and B: sugar cube. You press <<R>>.
Z: dishrag, R: wheat, and B: unicycle. You press <<B>>.
Z: boar, R: pacifier, and B: caramel. You press <<R>>.
Z: paper plate, R: bracelet, and B: meat. You press <<B>>.
Z: button, R: footrest, and B: chicken. You press <<B>>.
Z: almond, R: lobster, and B: window. You press <<B>>.
Z: neck, R: cannon, and B: padlock. You press <<Z>>.
Z: webcam, R: cape, and B: jigsaw puzzle. You press <<Z>>.
Z: latch, R: scale, and B: octopus. You press <<B>>.
Z: vent, R: thermostat, and B: moose. You press <<B>>.
Z: loom, R: palette, and B: freezer. You press <<B>>.
Z: sewage, R: cookie, and B: chalkboard. You press <<B>>.
Z: rack, R: oilcan, and B: pine tree. You press <<B>>.
Z: drain, R: tank, and B: unicycle. You press <<Z>>.
Z: anvil, R: ear, and B: wolf. You press <<Z>>.
Z: tag, R: flan, and B: safety pin. You press <<R>>.
Z: cardboard, R: refrigerator, and B: popsicle. You press <<Z>>.
Z: cymbal, R: onion, and B: frisbee. You press <<Z>>.
Z: joystick, R: mouse, and B: crumb. You press <<B>>.
Z: powder, R: bra, and B: altar. You press <<R>>.
Z: sling, R: almond, and B: cage. You press <<Z>>.
Z: birdbath, R: earring, and B: teacup. You press <<Z>>.
Z: clothes, R: megaphone, and B: windowsill. You press <<B>>.
Z: barcode, R: riser, and B: file. You press <<R>>.
Z: goalpost, R: yacht, and B: sock. You press <<B>>.
Z: razor, R: alligator, and B: totem pole. You press <<B>>.
Z: manatee, R: sleeping bag, and B: mitten. You press <<Z>>.
Z: roof rack, R: loincloth, and B: dish. You press <<R>>.
Z: desk, R: light switch, and B: barrel. You press <<R>>.
Z: ginger, R: eye patch, and B: eyeliner. You press <<Z>>.
Z: turbine, R: toaster oven, and B: outlet. You press <<Z>>.
Z: tick, R: flashlight, and B: scoop. You press <<Z>>.
Z: christmas tree, R: metal detector, and B: elephant. You press <<Z>>.
Z: cinnamon, R: hourglass, and B: deer. You press <<R>>.
Z: teacup, R: tarp, and B: meat. You press <<R>>.
Z: earplug, R: scrabble, and B: barbell. You press <<B>>.
Z: shell, R: cummerbund, and B: water fountain. You press <<B>>.
Z: mandolin, R: pea, and B: sewing machine. You press <<B>>.
Z: sunglasses, R: tape, and B: sticker. You press <<B>>.
Z: stretcher, R: saddle, and B: taxi. You press <<R>>.
Z: caviar, R: hay, and B: dashboard. You press <<R>>.
Z: puppy, R: soda, and B: branch. You press <<R>>.
Z: stool, R: game, and B: boxer shorts. You press <<B>>.
Z: mascara, R: margarita, and B: coat rack. You press <<R>>.
Z: grate, R: bedpan, and B: peg. You press <<R>>.
Z: birthday cake, R: shopping basket, and B: gumball. You press <<R>>.
Z: windshield wiper, R: phone booth, and B: sunglasses. You press <<R>>.
Z: microwave, R: whistle, and B: armor. You press <<Z>>.
Z: toilet paper, R: cd player, and B: candy bar. You press <<R>>.
Z: pear, R: credit card, and B: bottle opener. You press <<Z>>.
Z: spinach, R: candy bar, and B: dumpster. You press <<Z>>.
Z: thimble, R: jet, and B: washcloth. You press <<B>>.
Z: barrel, R: shell, and B: workbench. You press <<R>>.
Z: milkshake, R: salami, and B: sandpaper. You press <<B>>.
Z: measuring cup, R: jeans, and B: piglet. You press <<Z>>.
Z: chain, R: switch, and B: pajamas. You press <<B>>.
Z: bolt, R: bark, and B: bow. You press <<R>>.
Z: iron, R: crucifix, and B: swab. You press <<Z>>.
Z: filter, R: belt buckle, and B: christmas card. You press <<Z>>.
Z: notebook, R: seesaw, and B: steak. You press <<R>>.
Z: seatbelt, R: stem, and B: telescope. You press <<R>>.
Z: license plate, R: dish, and B: turtle. You press <<Z>>.
Z: shrimp, R: perfume, and B: christmas card. You press <<B>>.
Z: tablet, R: brick, and B: shell. You press <<R>>.
Z: football helmet, R: ram, and B: rabbit. You press <<Z>>.
Z: punch, R: cuckoo clock, and B: tee. You press <<R>>.
Z: nightstand, R: soy sauce, and B: beet. You press <<Z>>.
Z: dishwashing liquid, R: mole, and B: moose. You press <<Z>>.
Z: glue, R: blazer, and B: chinaware. You press <<Z>>.
Z: barrel, R: sequin, and B: ice pack. You press <<Z>>.
Z: cookie sheet, R: cupcake, and B: chicken. You press <<Z>>.
Z: jumpsuit, R: straw, and B: backdrop. You press <<Z>>.
Z: snowboard, R: barrel, and B: corn. You press <<Z>>.
Z: ram, R: car seat, and B: dashboard. You press <<Z>>.
Z: cot, R: crow, and B: avocado. You press <<B>>.
Z: holster, R: thumbtack, and B: vacuum. You press <<R>>.
Z: doorbell, R: graffiti, and B: spaghetti. You press <<R>>.
Z: box, R: boomerang, and B: weed. You press <<B>>.
Z: furnace, R: balance beam, and B: stereo. You press <<Z>>.
Z: cap, R: gauze, and B: boxing gloves. You press <<Z>>.
Z: rabbit, R: cabbage, and B: paperclip. You press <<B>>.
Z: flipper, R: bun, and B: wine cooler. You press <<Z>>.
Z: buoy, R: candy bar, and B: amplifier. You press <<Z>>.
Z: dishwasher, R: tuning fork, and B: cruise ship. You press <<B>>.
Z: calf, R: wood, and B: mandolin. You press <<Z>>.
Z: coconut, R: bomb, and B: mixer. You press <<Z>>.
Z: noisemaker, R: tractor, and B: trident. You press <<Z>>.
Z: pogo stick, R: button, and B: mud. You press <<B>>.
Z: surfboard, R: dresser, and B: block. You press <<R>>.
Z: soy sauce, R: doorknocker, and B: headlight. You press <<Z>>.
Z: tuxedo, R: gravestone, and B: manatee. You press <<R>>.
Z: wig, R: tomato, and B: jukebox. You press <<R>>.
Z: belt buckle, R: blackberry, and B: easel. You press <<R>>.
Z: lime, R: orange rind, and B: cardboard. You press <<B>>.
Z: plastic film, R: viewfinder, and B: workbench. You press <<Z>>.
Z: tee, R: finger, and B: mailbox. You press <<R>>.
Z: ink, R: hula hoop, and B: sweatsuit. You press <<Z>>.
Z: bulletin board, R: razor blade, and B: granola. You press <<R>>.
Z: donut, R: gravy, and B: appetizer. You press <<R>>.
Z: jeep, R: float, and B: bench. You press <<R>>.
Z: dustpan, R: door, and B: loincloth. You press <<B>>.
Z: tennis ball, R: ski pole, and B: alpaca. You press <<R>>.
Z: motorcycle, R: bus, and B: wreath. You press <<B>>.
Z: punch, R: spaghetti, and B: headrest. You press <<B>>.
Z: wire cutters, R: throne, and B: crane. You press <<R>>.
Z: butter, R: photo booth, and B: plunger. You press <<R>>.
Z: pitchfork, R: fruit, and B: wok. You press <<R>>.
Z: drain, R: gutter, and B: whistle. You press <<Z>>.
Z: comb, R: pesto, and B: nail file. You press <<R>>.
Z: spam, R: canvas, and B: scallion. You press <<R>>.
Z: boomerang, R: ski lift, and B: painting. You press <<Z>>.
Z: kimono, R: workbench, and B: station wagon. You press <<Z>>.
Z: sweet potato, R: flipper, and B: parrot. You press <<Z>>.
Z: visor, R: bib, and B: lion. You press <<B>>.
Z: pencil sharpener, R: pita, and B: orange. You press <<Z>>.
Z: shorts, R: noisemaker, and B: leech. You press <<R>>.
Z: napkin ring, R: starfish, and B: bell pepper. You press <<R>>.
Z: beanbag, R: slot, and B: baseball. You press <<R>>.
Z: harp, R: bologna, and B: salami. You press <<Z>>.
Z: wheelchair, R: neck, and B: prune. You press <<B>>.
Z: headscarf, R: koala, and B: snow. You press <<B>>.
Z: cruise ship, R: bonsai, and B: guardrail. You press <<B>>.
Z: stiletto, R: snowsuit, and B: sparkler. You press <<R>>.
Z: bamboo, R: flask, and B: locket. You press <<Z>>.
Z: inhaler, R: sink, and B: license plate. You press <<B>>.
Z: crutch, R: melon, and B: jersey. You press <<R>>.
Z: dumbwaiter, R: tambourine, and B: button. You press <<R>>.
Z: figurine, R: canvas, and B: pomegranate. You press <<B>>.
Z: leggings, R: jelly bean, and B: scuba. You press <<R>>.
Z: okra, R: coverall, and B: cocktail. You press <<R>>.
Z: odometer, R: windowsill, and B: squirt gun. You press <<B>>.
Z: gong, R: inkwell, and B: snorkel. You press <<B>>.
Z: oatmeal, R: pinball, and B: wreck. You press <<Z>>.
Z: crumb, R: tick, and B: fire hydrant. You press <<Z>>.
Z: turbine, R: tuxedo, and B: calamari. You press <<Z>>.
Z: roller, R: inkwell, and B: fuse. You press <<B>>.
Z: target, R: nightshirt, and B: stroller. You press <<Z>>.
Z: chicken, R: charger, and B: saw. You press <<Z>>.
Z: go-kart, R: sequin, and B: boy. You press <<R>>.
Z: napkin, R: confetti, and B: peach. You press <<B>>.
Z: outfit, R: furnace, and B: flatiron. You press <<Z>>.
Z: steering wheel, R: xylophone, and B: spark plug. You press <<R>>.
Z: bow, R: pennant, and B: cereal. You press <<B>>.
Z: duckling, R: home plate, and B: lens. You press <<Z>>.
Z: camel, R: washboard, and B: cross. You press <<Z>>.
Z: lingerie, R: trombone, and B: ferris wheel. You press <<Z>>.
Z: blueberry, R: life jacket, and B: snowboard. You press <<B>>.
Z: thermometer, R: omelet, and B: flypaper. You press <<R>>.
Z: pocketknife, R: pearl, and B: chicken. You press <<B>>.
Z: fox, R: shortbread, and B: arrow. You press <<R>>.
Z: caterpillar, R: flask, and B: gearshift. You press <<Z>>.
Z: webcam, R: glue, and B: cockroach. You press <<Z>>.
Z: roller coaster, R: swing, and B: battery. You press <<B>>.
Z: water filter, R: cornbread, and B: whale. You press <<R>>.
Z: dryer, R: comic book, and B: bus. You press <<R>>.
Z: barbell, R: cloud, and B: road sign. You press <<Z>>.
Z: gallows, R: pear, and B: binder. You press <<R>>.
Z: inhaler, R: knitting, and B: magnifier. You press <<R>>.
Z: organ, R: banana peel, and B: fly. You press <<B>>.
Z: coop, R: airboat, and B: skirt. You press <<B>>.
Z: sarcophagus, R: mosquito, and B: dessert. You press <<B>>.
Z: dolphin, R: gear, and B: file. You press <<Z>>.
Z: keyboard, R: pitchfork, and B: peppermint. You press <<B>>.
Z: puddle, R: coffee table, and B: heater. You press <<R>>.
Z: dart, R: hyena, and B: pie. You press <<Z>>.
Z: peanut, R: grille, and B: quesadilla. You press <<R>>.
Z: hatchet, R: stew, and B: aircraft carrier. You press <<R>>.
Z: confetti, R: alpaca, and B: strap. You press <<B>>.
Z: spark plug, R: satellite dish, and B: puck. You press <<B>>.
Z: shoulder, R: tree trunk, and B: mosquito. You press <<Z>>.
Z: scuba, R: comic book, and B: horn. You press <<R>>.
Z: knee, R: ping-pong table, and B: blowtorch. You press <<Z>>.
Z: potpourri, R: bumper, and B: brownie. You press <<B>>.
Z: headset, R: camcorder, and B: poster. You press <<B>>.
Z: marker, R: leaf, and B: bookmark. You press <<R>>.
Z: unicycle, R: hatchet, and B: football helmet. You press <<R>>.
Z: odometer, R: frog, and B: helmet. You press <<R>>.
Z: lawnmower, R: scissors, and B: mustard. You press <<B>>.
Z: walker, R: eye, and B: jumpsuit. You press <<B>>.
Z: glue, R: xylophone, and B: dumpster. You press <<B>>.
Z: lavender, R: throne, and B: coil. You press <<Z>>.
Z: clam, R: hatchet, and B: laser pointer. You press <<B>>.
Z: pheasant, R: bomb, and B: surfboard. You press <<Z>>.
Z: gem, R: polar bear, and B: petal. You press <<Z>>.
Z: cilantro, R: kimono, and B: rollerskate. You press <<R>>.
Z: fishing pole, R: berry, and B: doormat. You press <<B>>.
Z: rosary, R: lid, and B: paper bag. You press <<R>>.
Z: barbell, R: salad, and B: chinchilla. You press <<Z>>.
Z: battery, R: sandcastle, and B: straw. You press <<Z>>.
Z: shrimp, R: goat, and B: tag. You press <<B>>.
Z: sled, R: brooch, and B: hippopotamus. You press <<B>>.
Z: sandpaper, R: ice cube, and B: jeep. You press <<R>>.
Z: scissors, R: nightshirt, and B: lego. You press <<R>>.
Z: swordfish, R: box, and B: ring. You press <<R>>.
Z: chainsaw, R: pocketknife, and B: face mask. You press <<B>>.
Z: handle, R: router, and B: phone booth. You press <<R>>.
Z: mat, R: coffee filter, and B: generator. You press <<R>>.
Z: cheese, R: seaweed, and B: birdbath. You press <<B>>.
Z: station wagon, R: baseball glove, and B: cassette. You press <<R>>.
Z: wax paper, R: top hat, and B: wick. You press <<R>>.
Z: sonogram, R: avocado, and B: chihuahua. You press <<R>>.
Z: stopwatch, R: onion, and B: pear. You press <<Z>>.
Z: syrup, R: egg, and B: otter. You press <<B>>.
Z: road sign, R: cloud, and B: necklace. You press <<B>>.
Z: incubator, R: lasagna, and B: coffin. You press <<B>>.
Z: teacup, R: glass, and B: sparkler. You press <<B>>.
Z: guitar, R: penguin, and B: shoulder. You press <<Z>>.
Z: leaf, R: baseball bat, and B: map. You press <<R>>.
Z: fudge, R: waffle iron, and B: thermometer. You press <<B>>.
Z: glass, R: underwear, and B: air pump. You press <<B>>.
Z: keg, R: koala, and B: oatmeal. You press <<B>>.
Z: roulette wheel, R: toothpick, and B: stilt. You press <<Z>>.
Z: hubcap, R: coffee filter, and B: yolk. You press <<Z>>.
Z: dalmatian, R: fountain pen, and B: window. You press <<Z>>.
Z: sandpaper, R: parachute, and B: pothole. You press <<R>>.
Z: glue, R: cookie, and B: eye. You press <<Z>>.
Z: dandelion, R: seatbelt, and B: computer screen. You press <<Z>>.
Z: beanie, R: camera, and B: wedding cake. You press <<Z>>.
Z: snowplow, R: globe, and B: springboard. You press <<R>>.
Z: bungee, R: gopher, and B: dice. You press <<R>>.
Z: enchilada, R: dresser, and B: rocking chair. You press <<Z>>.
Z: birthday cake, R: curling iron, and B: lens. You press <<Z>>.
Z: ferret, R: wallpaper, and B: makeup. You press <<B>>.
Z: wax paper, R: lock, and B: vacuum. You press <<Z>>.
Z: sweeper, R: nutcracker, and B: steamroller. You press <<R>>.
Z: fossil, R: squeegee, and B: toast. You press <<R>>.
Z: sausage, R: swimming pool, and B: robe. You press <<B>>.
Z: crystal, R: car door, and B: cigarette butt. You press <<Z>>.
Z: dart, R: parking meter, and B: pecan. You press <<B>>.
Z: gasket, R: doily, and B: nut. You press <<B>>.
Z: comb, R: chinaware, and B: stump. You press <<B>>.
Z: bungee, R: awning, and B: sticker. You press <<Z>>.
Z: nutcracker, R: artichoke, and B: lantern. You press <<R>>.
Z: sorbet, R: bologna, and B: spear. You press <<B>>.
Z: life jacket, R: tractor, and B: stockings. You press <<B>>.
Z: saffron, R: cordon bleu, and B: traffic light. You press <<B>>.
Z: nail polish, R: revolving door, and B: headlamp. You press <<R>>.
Z: gumdrop, R: basketball hoop, and B: jewelry. You press <<R>>.
Z: turtle, R: poster, and B: ferret. You press <<R>>.
Z: gift, R: container, and B: doormat. You press <<B>>.
Z: combination lock, R: nose, and B: sauce. You press <<Z>>.
Z: windshield wiper, R: car, and B: tape. You press <<B>>.
Z: tape measure, R: mosquito, and B: gargoyle. You press <<Z>>.
Z: fox, R: cymbal, and B: macaroni. You press <<R>>.
Z: modem, R: knee, and B: gutter. You press <<Z>>.
Z: altar, R: hairdryer, and B: apple. You press <<R>>.
Z: balloon, R: chili, and B: leek. You press <<Z>>.
Z: peach, R: rain gauge, and B: lemonade. You press <<R>>.
Z: suspenders, R: bullet, and B: baseball bat. You press <<R>>.
Z: clothespin, R: quilt, and B: lasagna. You press <<B>>.
Z: yogurt, R: violin, and B: tweezers. You press <<Z>>.
Z: gingerbread man, R: car, and B: slicer. You press <<Z>>.
Z: whiteboard, R: corset, and B: suitcase. You press <<R>>.
Z: filter, R: torpedo, and B: toast. You press <<B>>.
Z: icepick, R: bookmark, and B: chest. You press <<R>>.
Z: napkin ring, R: pot, and B: lizard. You press <<B>>.
Z: showerhead, R: straw, and B: button. You press <<R>>.
Z: cap, R: dreidel, and B: grille. You press <<Z>>.
Z: puffin, R: pheasant, and B: candle. You press <<B>>.
Z: fencepost, R: yak, and B: shoulder. You press <<R>>.
Z: candy bar, R: swing, and B: jet. You press <<Z>>.
Z: tongs, R: fossil, and B: pastry. You press <<R>>.
Z: stump, R: asparagus, and B: lighter. You press <<B>>.
Z: breathalyzer, R: workbench, and B: splinter. You press <<B>>.
Z: scrambled egg, R: notepad, and B: blazer. You press <<Z>>.
Z: ship, R: slot, and B: meerkat. You press <<R>>.
Z: switch, R: throne, and B: pasta. You press <<B>>.
Z: guillotine, R: life jacket, and B: tiramisu. You press <<B>>.
Z: moth, R: chopsticks, and B: sandcastle. You press <<R>>.
Z: plum, R: backscratcher, and B: mongoose. You press <<B>>.
Z: turbine, R: cockatoo, and B: slicer. You press <<R>>.
Z: hook, R: piano, and B: t-shirt. You press <<B>>.
Z: apple tree, R: shoe polish, and B: parachute. You press <<R>>.
Z: napkin, R: ladybug, and B: wheelbarrow. You press <<Z>>.
Z: float, R: chips, and B: crib. You press <<R>>.
Z: scallion, R: motorcycle, and B: rattlesnake. You press <<R>>.
Z: gallows, R: engine, and B: torpedo. You press <<Z>>.
Z: flour, R: snow, and B: tube top. You press <<B>>.
Z: root, R: sofa bed, and B: octopus. You press <<R>>.
Z: weed, R: dumpster, and B: cranberry. You press <<B>>.
Z: parrot, R: snack, and B: foot. You press <<R>>.
Z: chime, R: tee, and B: bulletin board. You press <<B>>.
Z: thermometer, R: hole, and B: fishbowl. You press <<R>>.
Z: footprint, R: vent, and B: playpen. You press <<R>>.
Z: crowbar, R: trap, and B: mop. You press <<R>>.
Z: shaving cream, R: headdress, and B: go-kart. You press <<R>>.
Z: ball, R: banana, and B: terrarium. You press <<Z>>.
Z: accordion, R: shuffleboard, and B: harmonica. You press <<R>>.