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

O: leash, I: taillight, and Z: iguana. You press <<Z>>.
O: lens, I: dirt bike, and Z: police car. You press <<O>>.
O: abacus, I: lemon, and Z: spider. You press <<O>>.
O: clam, I: barbed wire, and Z: water cooler. You press <<Z>>.
O: monkey, I: tambourine, and Z: belt buckle. You press <<O>>.
O: anteater, I: spider web, and Z: ferret. You press <<I>>.
O: pudding, I: purse, and Z: eggshell. You press <<I>>.
O: squeegee, I: pump, and Z: foam. You press <<O>>.
O: knitting, I: salad, and Z: beet. You press <<O>>.
O: mud, I: jacket, and Z: truck. You press <<Z>>.
O: sewing kit, I: keyboard, and Z: baklava. You press <<Z>>.
O: hot-air balloon, I: mosquito, and Z: razor. You press <<I>>.
O: basketball, I: anchor, and Z: balance beam. You press <<I>>.
O: arrow, I: pool table, and Z: headset. You press <<O>>.
O: videogame, I: table, and Z: rattle. You press <<Z>>.
O: gumdrop, I: gate, and Z: tooth. You press <<I>>.
O: bottle opener, I: mold, and Z: cannonball. You press <<O>>.
O: slot, I: jump rope, and Z: handbrake. You press <<O>>.
O: mulch, I: rack, and Z: bush. You press <<I>>.
O: shaving cream, I: tool, and Z: ferry. You press <<O>>.
O: sandpaper, I: stirrup, and Z: cash machine. You press <<O>>.
O: filing cabinet, I: sock, and Z: saltshaker. You press <<I>>.
O: shoehorn, I: bark, and Z: snowsuit. You press <<O>>.
O: leech, I: foam, and Z: tick. You press <<O>>.
O: honeycomb, I: vial, and Z: denture. You press <<I>>.
O: shoehorn, I: shower cap, and Z: donkey. You press <<Z>>.
O: buoy, I: gazelle, and Z: coffee filter. You press <<I>>.
O: noose, I: rhinoceros, and Z: pennant. You press <<O>>.
O: coin, I: teepee, and Z: riser. You press <<O>>.
O: riser, I: memory stick, and Z: silverware. You press <<I>>.
O: cashew, I: giraffe, and Z: clarinet. You press <<Z>>.
O: hotplate, I: plate, and Z: paper plate. You press <<O>>.
O: bomb, I: jumpsuit, and Z: kale. You press <<O>>.
O: bell, I: sand, and Z: ankle. You press <<O>>.
O: odometer, I: headlight, and Z: rabbit. You press <<Z>>.
O: raisin, I: headdress, and Z: poppy. You press <<O>>.
O: gearshift, I: dough, and Z: football. You press <<O>>.
O: pool table, I: pole, and Z: coffee bean. You press <<O>>.
O: cloud, I: pepper mill, and Z: chain. You press <<Z>>.
O: jellyfish, I: gumball, and Z: tadpole. You press <<Z>>.
O: shopping cart, I: manhole, and Z: ball. You press <<Z>>.
O: backdrop, I: hairpin, and Z: battery. You press <<Z>>.
O: viewfinder, I: applesauce, and Z: outlet. You press <<I>>.
O: firetruck, I: kettle, and Z: go-kart. You press <<I>>.
O: cat, I: stereo, and Z: apple tree. You press <<I>>.
O: caviar, I: roller coaster, and Z: bell. You press <<O>>.
O: tool, I: kimono, and Z: chip. You press <<I>>.
O: guacamole, I: kettle, and Z: roulette wheel. You press <<O>>.
O: detonator, I: telephone pole, and Z: penlight. You press <<Z>>.
O: popsicle, I: footbath, and Z: popcorn. You press <<Z>>.
O: ambulance, I: block, and Z: phone. You press <<I>>.
O: ham, I: truck, and Z: birthday cake. You press <<I>>.
O: clipper, I: riser, and Z: sweatsuit. You press <<Z>>.
O: headrest, I: ladybug, and Z: stopwatch. You press <<I>>.
O: mussel, I: comic book, and Z: defibrillator. You press <<Z>>.
O: traffic light, I: loincloth, and Z: pipe. You press <<O>>.
O: grate, I: lectern, and Z: tooth. You press <<Z>>.
O: guitar, I: peeler, and Z: ravioli. You press <<Z>>.
O: knob, I: hyena, and Z: headlight. You press <<I>>.
O: magnet, I: bunkbed, and Z: caviar. You press <<Z>>.