You will be presented with triplets of objects, which will be assigned to the keys F, U, and X.
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: pipe, U: pajamas, and X: wing. You press <<U>>.
F: cactus, U: hotdog, and X: bun. You press <<F>>.
F: money, U: stockings, and X: gondola. You press <<F>>.
F: letter opener, U: paintbrush, and X: breathalyzer. You press <<X>>.
F: vial, U: bowler hat, and X: flan. You press <<F>>.
F: hail, U: lightning bug, and X: garter. You press <<U>>.
F: visor, U: braid, and X: chime. You press <<X>>.
F: mousepad, U: roulette wheel, and X: rhubarb. You press <<F>>.
F: air conditioner, U: nacho, and X: trunk. You press <<U>>.
F: flagpole, U: gyroscope, and X: extinguisher. You press <<U>>.
F: first-aid kit, U: chinchilla, and X: piecrust. You press <<U>>.
F: bulletproof vest, U: corkscrew, and X: green beans. You press <<F>>.
F: potpourri, U: caramel, and X: hairspray. You press <<X>>.
F: water heater, U: diving board, and X: holster. You press <<X>>.
F: saffron, U: quilt, and X: golf club. You press <<X>>.
F: makeup, U: goose, and X: octopus. You press <<F>>.
F: teepee, U: tinsel, and X: computer. You press <<U>>.
F: matchbox, U: boy, and X: quill. You press <<U>>.
F: spacesuit, U: possum, and X: duckling. You press <<F>>.
F: electric chair, U: gutter, and X: jeep. You press <<U>>.