You will be presented with triplets of objects, which will be assigned to the keys X, H, and R.
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: rattlesnake, H: yacht, and R: cushion. You press <<X>>.
X: makeup, H: red carpet, and R: rooster. You press <<R>>.
X: kilt, H: wedge, and R: fire alarm. You press <<X>>.
X: otter, H: raccoon, and R: cellphone. You press <<R>>.
X: tank, H: camel, and R: teabag. You press <<H>>.
X: latch, H: pillbox, and R: taxi. You press <<H>>.
X: bat, H: straightjacket, and R: string cheese. You press <<H>>.
X: air pump, H: shovel, and R: cupcake. You press <<R>>.
X: sled, H: wrench, and R: spear. You press <<X>>.
X: blind, H: scaffold, and R: space shuttle. You press <<R>>.
X: beetle, H: honeycomb, and R: nutcracker. You press <<R>>.
X: pin, H: mug, and R: breakfast. You press <<X>>.
X: shell, H: wind chimes, and R: wok. You press <<X>>.
X: microphone, H: eye, and R: tick. You press <<X>>.
X: ruby, H: contact lens, and R: frog. You press <<R>>.
X: candelabra, H: mattress, and R: chalkboard. You press <<X>>.
X: scarecrow, H: drum, and R: slot. You press <<H>>.
X: skeleton, H: airboat, and R: drumstick. You press <<X>>.
X: margarita, H: thermos, and R: parsley. You press <<H>>.
X: boxing gloves, H: cot, and R: tiara. You press <<R>>.