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

I: headband, R: windowsill, and U: salad. You press <<I>>.
I: gold, R: vending machine, and U: corsage. You press <<R>>.
I: turf, R: sled, and U: croissant. You press <<I>>.
I: hair, R: road sign, and U: shelf. You press <<I>>.
I: wasp, R: coffee table, and U: silicone. You press <<I>>.
I: hand, R: patch, and U: trumpet. You press <<R>>.
I: payphone, R: cotton candy, and U: velcro. You press <<R>>.
I: pickax, R: wing, and U: golf club. You press <<R>>.
I: roll, R: dolphin, and U: cage. You press <<R>>.
I: tuba, R: shovel, and U: record player. You press <<R>>.
I: face, R: wood, and U: boar. You press <<R>>.
I: mug, R: torch, and U: cookie. You press <<R>>.
I: vise, R: scoop, and U: crystal. You press <<U>>.
I: toolbox, R: footprint, and U: catapult. You press <<R>>.
I: lamb chop, R: broccoli, and U: lifesaver. You press <<U>>.
I: polygraph, R: waffle, and U: otter. You press <<I>>.
I: leek, R: corn, and U: motherboard. You press <<U>>.
I: porthole, R: marker, and U: eclair. You press <<U>>.
I: recorder, R: parking meter, and U: hockey stick. You press <<R>>.
I: wine, R: eggshell, and U: snowboard. You press <<U>>.