You will be presented with triplets of objects, which will be assigned to the keys X, S, 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: crumb, S: coal, and K: donkey. You press <<K>>.
X: domino, S: ballot box, and K: hard disk. You press <<S>>.
X: meatloaf, S: furnace, and K: pajamas. You press <<K>>.
X: computer screen, S: firetruck, and K: timer. You press <<S>>.
X: alpaca, S: sewing machine, and K: wind chimes. You press <<K>>.
X: crouton, S: hotplate, and K: barrette. You press <<K>>.
X: shoe polish, S: blimp, and K: subway. You press <<X>>.
X: pickle, S: meerkat, and K: doily. You press <<X>>.
X: basil, S: toilet paper, and K: beanie. You press <<K>>.
X: sticker, S: antenna, and K: crane. You press <<X>>.
X: puffin, S: manhole, and K: tuning fork. You press <<X>>.
X: cordon bleu, S: combination lock, and K: crane. You press <<X>>.
X: pecan, S: cabinet, and K: sink. You press <<X>>.
X: hummingbird, S: gravestone, and K: toast. You press <<X>>.
X: furnace, S: map, and K: knot. You press <<K>>.
X: spaghetti, S: leg, and K: touchpad. You press <<K>>.
X: tuba, S: gondola, and K: satellite. You press <<X>>.
X: chinchilla, S: gem, and K: raccoon. You press <<S>>.
X: frisbee, S: garter, and K: mosquito net. You press <<X>>.
X: jigsaw puzzle, S: chihuahua, and K: purse. You press <<X>>.