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

M: poinsettia, K: landmine, and E: reel. You press <<M>>.
M: footprint, K: robot, and E: gong. You press <<M>>.
M: chipmunk, K: orangutan, and E: valve. You press <<E>>.
M: gun, K: penholder, and E: furnace. You press <<M>>.
M: pitchfork, K: drain, and E: squirt gun. You press <<E>>.
M: rock, K: motherboard, and E: teddy bear. You press <<K>>.
M: power line, K: axe, and E: penholder. You press <<M>>.
M: duffel bag, K: ant, and E: nail. You press <<K>>.
M: closet, K: guinea pig, and E: button. You press <<K>>.
M: backdrop, K: tambourine, and E: pants. You press <<K>>.
M: tab, K: stir fry, and E: horseshoe. You press <<K>>.
M: plaster cast, K: ice-cream cone, and E: windshield. You press <<M>>.
M: hinge, K: piglet, and E: jar. You press <<K>>.
M: safety pin, K: okra, and E: face. You press <<E>>.
M: casserole, K: tortilla, and E: headrest. You press <<E>>.
M: seaplane, K: hanger, and E: metronome. You press <<K>>.
M: fire, K: dumpling, and E: flask. You press <<K>>.
M: papaya, K: pine tree, and E: refrigerator. You press <<E>>.
M: album, K: needle, and E: spider. You press <<E>>.
M: tiara, K: cushion, and E: shell. You press <<E>>.