You will be presented with triplets of objects, which will be assigned to the keys Z, N, and M.
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.

Z: hearing aid, N: paper bag, and M: file. You press <<Z>>.
Z: hot tub, N: napkin, and M: moth. You press <<Z>>.
Z: bird, N: meat, and M: snowplow. You press <<M>>.
Z: mouse, N: chest, and M: dashboard. You press <<N>>.
Z: fishhook, N: honeypot, and M: goggles. You press <<Z>>.
Z: skirt, N: pedometer, and M: shell. You press <<N>>.
Z: loom, N: plaster cast, and M: dress. You press <<Z>>.
Z: birdcage, N: coaster, and M: cauliflower. You press <<Z>>.
Z: scissors, N: scaffold, and M: dial. You press <<M>>.
Z: gurney, N: vent, and M: phone booth. You press <<N>>.
Z: tree trunk, N: piglet, and M: jewelry. You press <<N>>.
Z: cross, N: lanyard, and M: firewood. You press <<N>>.
Z: coyote, N: crutch, and M: marker. You press <<Z>>.
Z: beehive, N: sandwich, and M: chicken. You press <<M>>.
Z: eel, N: fork, and M: handkerchief. You press <<Z>>.
Z: chisel, N: mousetrap, and M: twig. You press <<M>>.
Z: mussel, N: mail, and M: stiletto. You press <<Z>>.
Z: taillight, N: squirt gun, and M: counter. You press <<Z>>.
Z: blouse, N: swizzle stick, and M: cornucopia. You press <<Z>>.
Z: pig, N: napkin, and M: camcorder. You press <<Z>>.