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

X: easter egg, S: file, and O: xylophone. You press <<S>>.
X: chainsaw, S: pin, and O: toad. You press <<O>>.
X: bobsled, S: gyro, and O: rag. You press <<O>>.
X: gramophone, S: gravel, and O: dog. You press <<S>>.
X: candle, S: coral, and O: puck. You press <<S>>.
X: sofa bed, S: stamp, and O: thimble. You press <<X>>.
X: boomerang, S: mantle, and O: rickshaw. You press <<O>>.
X: pet food, S: pedal, and O: antenna. You press <<X>>.
X: shears, S: cream cheese, and O: board game. You press <<S>>.
X: magnet, S: iguana, and O: porthole. You press <<S>>.
X: snowboard, S: beet, and O: garlic. You press <<X>>.
X: sauce, S: necklace, and O: grapefruit. You press <<S>>.
X: pole, S: pan, and O: scuba. You press <<O>>.
X: badge, S: light switch, and O: iceskate. You press <<S>>.
X: clipboard, S: stained glass, and O: syringe. You press <<O>>.
X: vending machine, S: ramp, and O: eggshell. You press <<O>>.
X: slug, S: dough, and O: face mask. You press <<O>>.
X: wagon, S: cardinal, and O: jigsaw puzzle. You press <<S>>.
X: gramophone, S: dog, and O: gravel. You press <<O>>.
X: chive, S: rudder, and O: flatiron. You press <<S>>.