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

O: oilcan, Z: gem, and I: fig. You press <<Z>>.
O: graffiti, Z: jug, and I: nut. You press <<O>>.
O: rack, Z: football, and I: metronome. You press <<Z>>.
O: swing, Z: checkers, and I: stopwatch. You press <<I>>.
O: trailer, Z: football, and I: scalpel. You press <<I>>.
O: soap, Z: wrist, and I: rain gauge. You press <<Z>>.
O: limousine, Z: soccer ball, and I: hobbyhorse. You press <<O>>.
O: stained glass, Z: tray, and I: spam. You press <<O>>.
O: handprint, Z: sprinkler, and I: bus. You press <<O>>.
O: blind, Z: coyote, and I: crane. You press <<Z>>.
O: crepe, Z: faucet, and I: gyroscope. You press <<I>>.
O: hot tub, Z: leggings, and I: shutter. You press <<Z>>.
O: pepperoni, Z: stew, and I: boy. You press <<I>>.
O: pudding, Z: velcro, and I: bow. You press <<O>>.
O: muff, Z: radish, and I: dishwasher. You press <<O>>.
O: bus, Z: sand, and I: peanut. You press <<O>>.
O: slipper, Z: recorder, and I: sheep. You press <<Z>>.
O: applesauce, Z: rope, and I: hockey stick. You press <<O>>.
O: gem, Z: fig, and I: oilcan. You press <<O>>.
O: bread, Z: roller, and I: dreidel. You press <<O>>.
O: lettuce, Z: cash machine, and I: tack. You press <<O>>.
O: jack, Z: sandwich, and I: crowbar. You press <<Z>>.
O: lavender, Z: garter, and I: chicken. You press <<I>>.
O: thread, Z: snowplow, and I: jet. You press <<O>>.
O: scorpion, Z: fox, and I: tick. You press <<Z>>.
O: hard disk, Z: mulberry, and I: bagel. You press <<O>>.
O: perfume, Z: electric chair, and I: tick. You press <<I>>.
O: modem, Z: outlet, and I: goldfish. You press <<I>>.
O: binoculars, Z: showerhead, and I: pulley. You press <<Z>>.
O: motorcycle, Z: tube top, and I: power line. You press <<Z>>.
O: paperweight, Z: gas mask, and I: keyboard. You press <<Z>>.
O: pet food, Z: buoy, and I: avocado. You press <<Z>>.
O: cabbage, Z: dip, and I: stretcher. You press <<I>>.
O: crystal, Z: washing machine, and I: blueberry. You press <<Z>>.
O: sand, Z: lumber, and I: pipe. You press <<O>>.
O: ready meal, Z: snowshoe, and I: pillow. You press <<I>>.
O: roll, Z: cucumber, and I: chain. You press <<I>>.
O: hotplate, Z: beard, and I: chalice. You press <<Z>>.
O: lettuce, Z: tack, and I: cash machine. You press <<O>>.
O: meat grinder, Z: headdress, and I: electric chair. You press <<Z>>.
O: toe, Z: bird, and I: pig. You press <<O>>.
O: plate, Z: chair, and I: game. You press <<I>>.
O: swing, Z: bracket, and I: volleyball. You press <<Z>>.
O: first-aid kit, Z: badger, and I: nutcracker. You press <<Z>>.
O: hanger, Z: turf, and I: swing. You press <<O>>.
O: salad, Z: penguin, and I: pen. You press <<I>>.
O: batter, Z: flag, and I: bin. You press <<Z>>.
O: bracelet, Z: sundae, and I: remote control. You press <<Z>>.
O: yoke, Z: pomegranate, and I: oilcan. You press <<Z>>.
O: ambulance, Z: ant, and I: sleeping bag. You press <<Z>>.
O: sheet, Z: curry, and I: backgammon. You press <<Z>>.
O: mannequin, Z: boat, and I: outlet. You press <<I>>.
O: beetle, Z: bench, and I: lavender. You press <<O>>.
O: wolf, Z: pin, and I: plug. You press <<O>>.
O: goalpost, Z: raincoat, and I: lid. You press <<O>>.
O: coop, Z: rust, and I: chip. You press <<I>>.
O: shredder, Z: puffin, and I: soda fountain. You press <<Z>>.
O: silverware, Z: can opener, and I: router. You press <<I>>.
O: aloe, Z: stir fry, and I: pelican. You press <<I>>.
O: hammer, Z: cheeseburger, and I: cookie cutter. You press <<Z>>.
O: hawk, Z: sewing kit, and I: screen. You press <<O>>.
O: highchair, Z: anklet, and I: bug. You press <<I>>.
O: lid, Z: origami, and I: scalpel. You press <<I>>.
O: granite, Z: saucer, and I: bedpost. You press <<I>>.
O: platypus, Z: puddle, and I: sidecar. You press <<I>>.
O: jersey, Z: gong, and I: headlamp. You press <<I>>.
O: mouse, Z: chickpea, and I: orange. You press <<O>>.
O: sickle, Z: birthday cake, and I: cookie. You press <<O>>.
O: porcupine, Z: peacock, and I: speedometer. You press <<I>>.
O: spatula, Z: punch, and I: watering can. You press <<O>>.
O: fish, Z: jumpsuit, and I: spring roll. You press <<I>>.
O: pin, Z: brownie, and I: dog. You press <<O>>.
O: trident, Z: pencil, and I: cushion. You press <<I>>.
O: cougar, Z: cornhusk, and I: sawhorse. You press <<O>>.
O: marijuana, Z: rust, and I: umbrella. You press <<O>>.
O: moccasin, Z: mascara, and I: walker. You press <<Z>>.
O: lion, Z: duck, and I: foam. You press <<I>>.
O: petal, Z: volleyball, and I: polisher. You press <<O>>.
O: goblet, Z: peanut, and I: flip flop. You press <<I>>.
O: fire alarm, Z: lens, and I: eraser. You press <<Z>>.
O: keyboard, Z: bolt, and I: diskette. You press <<I>>.
O: chipmunk, Z: music box, and I: polisher. You press <<O>>.
O: bonnet, Z: lava, and I: swan. You press <<Z>>.
O: chihuahua, Z: skull, and I: dirt bike. You press <<I>>.
O: road sign, Z: meat grinder, and I: arrow. You press <<O>>.
O: bat, Z: railing, and I: barnacle. You press <<Z>>.
O: weather vane, Z: parsley, and I: canoe. You press <<Z>>.
O: scuba, Z: music box, and I: cactus. You press <<I>>.
O: polygraph, Z: doorstop, and I: parfait. You press <<I>>.
O: giraffe, Z: jewelry, and I: tupperware. You press <<O>>.
O: crossbow, Z: doormat, and I: curling iron. You press <<Z>>.
O: honey, Z: taco, and I: hip. You press <<I>>.
O: buckle, Z: rose, and I: stem. You press <<O>>.
O: gavel, Z: radish, and I: stalagmite. You press <<O>>.
O: sofa bed, Z: cookie cutter, and I: clam. You press <<O>>.
O: rack, Z: baton, and I: grape. You press <<Z>>.
O: leech, Z: gift, and I: airboat. You press <<Z>>.
O: shark, Z: juice, and I: melon. You press <<O>>.
O: dollhouse, Z: pumpkin, and I: cheese. You press <<O>>.
O: hummus, Z: radiator, and I: stuffing. You press <<Z>>.
O: wrench, Z: shawl, and I: measuring cup. You press <<Z>>.
O: odometer, Z: bagel, and I: platypus. You press <<O>>.
O: underwear, Z: bedpan, and I: cheeseburger. You press <<I>>.
O: film, Z: skateboard, and I: rickshaw. You press <<O>>.
O: stir fry, Z: dish, and I: compost. You press <<I>>.
O: avocado, Z: shelf, and I: headphones. You press <<O>>.
O: walker, Z: watch, and I: harp. You press <<Z>>.
O: oven, Z: ostrich, and I: stove. You press <<Z>>.
O: webcam, Z: handcuff, and I: fingerprint. You press <<O>>.
O: grits, Z: sheath, and I: place mat. You press <<O>>.
O: lollipop, Z: helmet, and I: octopus. You press <<I>>.
O: coffin, Z: tapestry, and I: water heater. You press <<Z>>.
O: canoe, Z: toothpick, and I: apple tree. You press <<Z>>.
O: bag, Z: parsley, and I: barbed wire. You press <<I>>.
O: cereal, Z: photo booth, and I: organ. You press <<O>>.
O: raisin, Z: kimono, and I: cord. You press <<I>>.
O: hoe, Z: hyena, and I: bathtub. You press <<I>>.
O: earring, Z: spider web, and I: cocoon. You press <<O>>.
O: pantsuit, Z: urn, and I: seaweed. You press <<I>>.
O: drill, Z: prune, and I: amber. You press <<O>>.