You will be presented with triplets of objects, which will be assigned to the keys P, E, and K.
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: speedboat, E: lego, and K: typewriter. You press <<P>>.
P: jellyfish, E: polar bear, and K: waterwheel. You press <<K>>.
P: lobster, E: traffic light, and K: birdcage. You press <<K>>.
P: chess piece, E: stool, and K: sim card. You press <<K>>.
P: chicken, E: gopher, and K: lamb chop. You press <<K>>.
P: stamp, E: giraffe, and K: cocoon. You press <<P>>.
P: paint, E: petri dish, and K: pistachio. You press <<E>>.
P: bra, E: fly, and K: noisemaker. You press <<K>>.
P: slingshot, E: hook, and K: lasagna. You press <<K>>.
P: garbage, E: carriage, and K: straw. You press <<E>>.
P: envelope, E: champagne, and K: ski. You press <<K>>.
P: anteater, E: gumdrop, and K: board game. You press <<P>>.
P: hookah, E: zipper, and K: rim. You press <<P>>.
P: batter, E: piglet, and K: cigarette butt. You press <<P>>.
P: sheep, E: briefcase, and K: pillbox. You press <<P>>.
P: sundial, E: yo-yo, and K: hula hoop. You press <<P>>.
P: sequin, E: denture, and K: ear. You press <<P>>.
P: gem, E: branch, and K: photo booth. You press <<E>>.
P: stem, E: battery, and K: organ. You press <<K>>.
P: knot, E: vial, and K: power line. You press <<E>>.