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

W: tomato, K: guinea pig, and I: crane. You press <<I>>.
W: vacuum, K: chinaware, and I: horn. You press <<K>>.
W: helmet, K: wetsuit, and I: bottle opener. You press <<I>>.
W: basketball, K: limousine, and I: rose. You press <<W>>.
W: jack, K: microwave, and I: chicken wire. You press <<I>>.
W: boat, K: bottle opener, and I: inhaler. You press <<W>>.
W: sunglasses, K: lightning bug, and I: target. You press <<I>>.
W: generator, K: spool, and I: hubcap. You press <<W>>.
W: flypaper, K: sponge, and I: flatiron. You press <<W>>.
W: floss, K: oil, and I: sock. You press <<K>>.
W: caterpillar, K: bull, and I: frog. You press <<K>>.
W: onion, K: projector, and I: pedometer. You press <<W>>.
W: grater, K: cart, and I: hawk. You press <<I>>.
W: cabinet, K: eggbeater, and I: basil. You press <<I>>.
W: rim, K: cake mix, and I: olive. You press <<W>>.
W: pepper mill, K: blinder, and I: pen. You press <<K>>.
W: dartboard, K: piecrust, and I: toothpick. You press <<W>>.
W: tiara, K: cooker, and I: blouse. You press <<K>>.
W: paper, K: stirrup, and I: wig. You press <<W>>.
W: sandwich, K: giraffe, and I: strap. You press <<I>>.