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

P: submarine, Z: accordion, and I: nail polish. You press <<P>>.
P: nail, Z: ferris wheel, and I: cocktail. You press <<Z>>.
P: pantyhose, Z: canister, and I: easter egg. You press <<P>>.
P: medal, Z: guitar, and I: workbench. You press <<I>>.
P: crayfish, Z: scaffolding, and I: smoothie. You press <<Z>>.
P: crutch, Z: knitting needle, and I: ambulance. You press <<I>>.
P: scuba, Z: bolt, and I: donkey. You press <<I>>.
P: thermos, Z: scale, and I: stake. You press <<P>>.
P: sofa bed, Z: spoon, and I: trombone. You press <<P>>.
P: sandbox, Z: cantaloupe, and I: hubcap. You press <<Z>>.
P: crate, Z: stamp, and I: lasagna. You press <<P>>.
P: pizza, Z: seahorse, and I: compass. You press <<Z>>.
P: tamale, Z: lizard, and I: bracelet. You press <<Z>>.
P: dessert, Z: baseball glove, and I: dagger. You press <<P>>.
P: teddy bear, Z: copier, and I: jellyfish. You press <<I>>.
P: peach, Z: gyroscope, and I: windshield wiper. You press <<P>>.
P: mulch, Z: gopher, and I: cruise ship. You press <<Z>>.
P: torso, Z: cake mix, and I: briefcase. You press <<P>>.
P: twig, Z: ice cream, and I: chin. You press <<I>>.
P: hatchet, Z: doormat, and I: gourd. You press <<Z>>.