You will be presented with triplets of objects, which will be assigned to the keys X, H, and K.
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: aardvark, H: kiwi, and K: incubator. You press <<H>>.
X: pug, H: mouthpiece, and K: rack. You press <<K>>.
X: waterwheel, H: walrus, and K: remote control. You press <<H>>.
X: foot, H: yogurt, and K: photo booth. You press <<H>>.
X: hyena, H: necklace, and K: box. You press <<X>>.
X: saltshaker, H: baklava, and K: weasel. You press <<K>>.
X: metronome, H: water heater, and K: wolf. You press <<K>>.
X: highchair, H: towel rack, and K: pinwheel. You press <<K>>.
X: creme brulee, H: ham, and K: sunroof. You press <<K>>.
X: teacup, H: tank, and K: hole. You press <<X>>.
X: yoke, H: cushion, and K: cap. You press <<X>>.
X: smoothie, H: wheelchair, and K: coffee filter. You press <<H>>.
X: candy cane, H: cuckoo clock, and K: dog. You press <<K>>.
X: horseshoe, H: navel, and K: egg roll. You press <<K>>.
X: pitchfork, H: cheetah, and K: shower. You press <<H>>.
X: watering can, H: wafer, and K: hyena. You press <<K>>.
X: rake, H: brussels sprouts, and K: bookmark. You press <<K>>.
X: sonogram, H: shredder, and K: wolf. You press <<K>>.
X: frisbee, H: brass knuckles, and K: crate. You press <<K>>.
X: shutter, H: washing machine, and K: ironing board. You press <<X>>.