You will be presented with triplets of objects, which will be assigned to the keys K, X, and D.
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.

K: card, X: barnacle, and D: praying mantis. You press <<K>>.
K: wood, X: breakfast, and D: globe. You press <<K>>.
K: owl, X: cockroach, and D: twig. You press <<X>>.
K: outlet, X: gingerbread man, and D: snowplow. You press <<X>>.
K: brass knuckles, X: bomb, and D: scorpion. You press <<D>>.
K: soccer ball, X: patty, and D: breadstick. You press <<K>>.
K: candelabra, X: thumbtack, and D: container. You press <<D>>.
K: navel, X: organ, and D: handkerchief. You press <<K>>.
K: vase, X: lamb, and D: ostrich. You press <<K>>.
K: muffin, X: coleslaw, and D: nail file. You press <<D>>.
K: man, X: target, and D: raccoon. You press <<K>>.
K: antelope, X: champagne, and D: tuba. You press <<X>>.
K: duster, X: guitar, and D: globe. You press <<K>>.
K: peanut, X: jumpsuit, and D: towel rack. You press <<K>>.
K: goalpost, X: trophy, and D: axe. You press <<D>>.
K: exerciser, X: tractor, and D: duckling. You press <<D>>.
K: gauze, X: couch, and D: lizard. You press <<D>>.
K: gingerbread man, X: snowplow, and D: outlet. You press <<K>>.
K: seed, X: wax paper, and D: car seat. You press <<X>>.
K: birthday cake, X: crank, and D: shark. You press <<X>>.