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

X: shield, H: honeycomb, and I: clothespin. You press <<X>>.
X: kite, H: poinsettia, and I: footprint. You press <<H>>.
X: rack, H: tube top, and I: cymbal. You press <<H>>.
X: cactus, H: pump, and I: boulder. You press <<H>>.
X: bra, H: cufflink, and I: guillotine. You press <<X>>.
X: mug, H: peanut butter, and I: spinach. You press <<I>>.
X: grate, H: owl, and I: ravioli. You press <<H>>.
X: dreidel, H: fern, and I: mustard. You press <<X>>.
X: lettuce, H: firewood, and I: hat. You press <<I>>.
X: gauze, H: basketball, and I: beer. You press <<H>>.
X: moose, H: refrigerator, and I: heater. You press <<X>>.
X: eel, H: pelican, and I: medal. You press <<I>>.
X: envelope, H: pulley, and I: sledgehammer. You press <<X>>.
X: credit card, H: jelly bean, and I: nightshirt. You press <<X>>.
X: wick, H: pet food, and I: wheel. You press <<I>>.
X: knitting needle, H: game, and I: hyena. You press <<I>>.
X: veil, H: pie, and I: propeller. You press <<I>>.
X: dip, H: bell, and I: hummingbird. You press <<X>>.
X: gorilla, H: ravioli, and I: ant. You press <<H>>.
X: birdhouse, H: green beans, and I: doghouse. You press <<H>>.