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

Z: starfish, W: jetski, and U: chest. You press <<Z>>.
Z: kilt, W: fire alarm, and U: bell. You press <<Z>>.
Z: flagpole, W: mouse, and U: denture. You press <<W>>.
Z: mashed potato, W: table, and U: bead. You press <<W>>.
Z: cinnamon, W: wire cutters, and U: easel. You press <<U>>.
Z: funnel, W: blackberry, and U: watering can. You press <<W>>.
Z: belt, W: basil, and U: cockatoo. You press <<Z>>.
Z: ladybug, W: slicer, and U: chive. You press <<W>>.
Z: thorn, W: clam, and U: dolly. You press <<U>>.
Z: bathrobe, W: thermos, and U: grasshopper. You press <<U>>.
Z: computer screen, W: jeep, and U: burner. You press <<Z>>.
Z: arm, W: fungus, and U: towel. You press <<U>>.
Z: crutch, W: eyedropper, and U: oilcan. You press <<Z>>.
Z: barrette, W: celery, and U: quesadilla. You press <<Z>>.
Z: laser pointer, W: life jacket, and U: aardvark. You press <<Z>>.
Z: sled, W: spur, and U: drumstick. You press <<W>>.
Z: mashed potato, W: table, and U: bead. You press <<W>>.
Z: bike, W: computer, and U: gravy. You press <<U>>.
Z: tomato sauce, W: chin, and U: ice cream. You press <<W>>.
Z: saffron, W: walrus, and U: ballot box. You press <<U>>.