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

H: patch, K: hedge, and U: matchbox. You press <<K>>.
H: tractor, K: tuxedo, and U: baseball. You press <<H>>.
H: place mat, K: knee, and U: splinter. You press <<H>>.
H: blower, K: cement mixer, and U: altar. You press <<K>>.
H: payphone, K: electric chair, and U: croissant. You press <<U>>.
H: water cooler, K: pickax, and U: blanket. You press <<K>>.
H: goldfish, K: spatula, and U: jacket. You press <<K>>.
H: bookmark, K: computer screen, and U: reindeer. You press <<K>>.
H: pitcher, K: fireworks, and U: sheet. You press <<U>>.
H: paper, K: leech, and U: bed. You press <<K>>.
H: lemon, K: bagpipe, and U: fly. You press <<K>>.
H: shirt, K: first-aid kit, and U: whip. You press <<H>>.
H: turban, K: shirt, and U: tongue. You press <<U>>.
H: polar bear, K: cloak, and U: swing set. You press <<K>>.
H: hatbox, K: binoculars, and U: shoe. You press <<H>>.
H: cabbage, K: cigarette, and U: crouton. You press <<K>>.
H: hot-water bottle, K: flypaper, and U: firecracker. You press <<H>>.
H: telephone pole, K: duster, and U: iron. You press <<K>>.
H: torch, K: water heater, and U: vial. You press <<H>>.
H: crouton, K: screen, and U: antelope. You press <<K>>.