You will be presented with triplets of objects, which will be assigned to the keys F, N, 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.

F: foam, N: sleeping bag, and D: hockey stick. You press <<D>>.
F: mascara, N: step stool, and D: lighter. You press <<F>>.
F: gyroscope, N: mushroom, and D: fork. You press <<N>>.
F: teddy bear, N: hamster, and D: gondola. You press <<D>>.
F: soup, N: dress, and D: lectern. You press <<N>>.
F: cookie sheet, N: motorcycle, and D: flower. You press <<D>>.
F: traffic light, N: swordfish, and D: headlight. You press <<N>>.
F: harp, N: bottle opener, and D: wheat. You press <<D>>.
F: mast, N: altar, and D: kazoo. You press <<F>>.
F: wig, N: piano, and D: mattress. You press <<F>>.
F: chip, N: sewage, and D: trashcan. You press <<F>>.
F: reel, N: swimsuit, and D: trolley. You press <<D>>.
F: jeans, N: bowl, and D: grinder. You press <<F>>.
F: brake, N: crate, and D: spider web. You press <<D>>.
F: handlebar, N: mandolin, and D: buckle. You press <<D>>.
F: chessboard, N: drink, and D: porcupine. You press <<D>>.
F: bookshelf, N: hairpin, and D: shovel. You press <<D>>.
F: bonnet, N: pigeon, and D: baby. You press <<N>>.
F: water cooler, N: hard disk, and D: bonsai. You press <<D>>.
F: window, N: peg, and D: propeller. You press <<D>>.