You will be presented with triplets of objects, which will be assigned to the keys Z, P, and A.
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: seahorse, P: hotdog, and A: ankle. You press <<A>>.
Z: curtain, P: pajamas, and A: souffle. You press <<A>>.
Z: gauze, P: napkin ring, and A: spatula. You press <<Z>>.
Z: door, P: school bus, and A: saw. You press <<A>>.
Z: raccoon, P: guinea pig, and A: nightshirt. You press <<A>>.
Z: home plate, P: bonsai, and A: anklet. You press <<Z>>.
Z: thumbtack, P: teddy bear, and A: slime. You press <<Z>>.
Z: nacho, P: roof rack, and A: mannequin. You press <<A>>.
Z: firecracker, P: stirrup, and A: cross. You press <<A>>.
Z: pillow, P: eggshell, and A: coffeemaker. You press <<Z>>.
Z: root, P: jam, and A: radar. You press <<P>>.
Z: light switch, P: gravy, and A: wasp. You press <<A>>.
Z: computer, P: block, and A: film. You press <<P>>.
Z: paddle, P: bubble wrap, and A: foot. You press <<P>>.
Z: jug, P: scallop, and A: chain. You press <<A>>.
Z: log, P: wrap, and A: rock. You press <<P>>.
Z: water bottle, P: elbow, and A: exerciser. You press <<Z>>.
Z: undershirt, P: stove, and A: balloon. You press <<A>>.
Z: cuckoo clock, P: milkshake, and A: satellite. You press <<P>>.
Z: scarf, P: handle, and A: applesauce. You press <<A>>.