You will be presented with triplets of objects, which will be assigned to the keys Q, R, and S.
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.

Q: grain, R: mold, and S: raft. You press <<S>>.
Q: platypus, R: potholder, and S: ice-cream cone. You press <<Q>>.
Q: shower cap, R: caviar, and S: pocket. You press <<S>>.
Q: icepick, R: hookah, and S: knot. You press <<S>>.
Q: elbow, R: brick, and S: polisher. You press <<R>>.
Q: hearing aid, R: beaker, and S: watermelon. You press <<S>>.
Q: cement mixer, R: ski, and S: lightbulb. You press <<R>>.
Q: pajamas, R: plug, and S: rolling pin. You press <<Q>>.
Q: fuse, R: mouth, and S: chin. You press <<Q>>.
Q: buffet, R: stamp, and S: lunchbox. You press <<R>>.
Q: gyroscope, R: pallet, and S: yarn. You press <<S>>.
Q: basketball hoop, R: applesauce, and S: meatball. You press <<Q>>.
Q: coat, R: guillotine, and S: rearview mirror. You press <<R>>.
Q: hoe, R: inkwell, and S: cardigan. You press <<S>>.
Q: spur, R: dishwashing liquid, and S: tray. You press <<Q>>.
Q: cookie sheet, R: boxer shorts, and S: desk. You press <<R>>.
Q: paper, R: counter, and S: apple tree. You press <<Q>>.
Q: caviar, R: pocket, and S: shower cap. You press <<R>>.
Q: racket, R: anklet, and S: crumb. You press <<S>>.
Q: flamethrower, R: backpack, and S: rose. You press <<Q>>.