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

R: cash register, I: jackhammer, and Z: scone. You press <<I>>.
R: gas mask, I: satellite dish, and Z: steering wheel. You press <<I>>.
R: wineglass, I: eggbeater, and Z: defibrillator. You press <<Z>>.
R: ostrich, I: doghouse, and Z: garlic. You press <<I>>.
R: sandcastle, I: spring roll, and Z: gauze. You press <<Z>>.
R: locker, I: underwear, and Z: garlic. You press <<R>>.
R: slicer, I: float, and Z: sandbag. You press <<R>>.
R: sea urchin, I: laser pointer, and Z: ivy. You press <<I>>.
R: cabbage, I: record, and Z: lighter. You press <<R>>.
R: lobster, I: envelope, and Z: speaker. You press <<Z>>.
R: crib, I: watch, and Z: egg. You press <<I>>.
R: rack, I: gem, and Z: speedometer. You press <<I>>.
R: corset, I: coat, and Z: projector. You press <<Z>>.
R: clay, I: rearview mirror, and Z: coconut. You press <<I>>.
R: van, I: tortilla, and Z: patch. You press <<I>>.
R: hood, I: pearl, and Z: crowbar. You press <<I>>.
R: skewer, I: coconut, and Z: coffin. You press <<Z>>.
R: revolver, I: bracket, and Z: dashboard. You press <<Z>>.
R: gas mask, I: steering wheel, and Z: satellite dish. You press <<R>>.
R: pita, I: drill, and Z: toucan. You press <<R>>.