You will be presented with triplets of objects, which will be assigned to the keys P, X, and C.
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.

P: water filter, X: owl, and C: beanbag. You press <<X>>.
P: bedpan, X: chickpea, and C: frame. You press <<X>>.
P: hot-air balloon, X: cigarette holder, and C: tambourine. You press <<P>>.
P: swordfish, X: squash, and C: turnstile. You press <<C>>.
P: stump, X: lingerie, and C: photo booth. You press <<P>>.
P: thread, X: neck, and C: gauze. You press <<X>>.
P: ravioli, X: bumper, and C: fungus. You press <<P>>.
P: cream cheese, X: mat, and C: chocolate. You press <<X>>.
P: arm, X: eye, and C: windshield. You press <<C>>.
P: dumbwaiter, X: stake, and C: police car. You press <<X>>.
P: bun, X: sunroof, and C: plaster cast. You press <<C>>.
P: surfboard, X: lemon, and C: wallpaper. You press <<P>>.
P: watering can, X: holster, and C: file. You press <<P>>.
P: sink, X: garlic, and C: sundial. You press <<X>>.
P: undershirt, X: stretcher, and C: gurney. You press <<P>>.
P: hook, X: clipboard, and C: bologna. You press <<C>>.
P: dresser, X: headrest, and C: barbed wire. You press <<C>>.
P: lizard, X: tab, and C: monkey. You press <<X>>.
P: highlighter, X: sundae, and C: penholder. You press <<X>>.
P: mitten, X: jalapeno, and C: barbell. You press <<X>>.