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

D: trowel, C: coin, and O: sewing machine. You press <<D>>.
D: bookmark, C: harness, and O: pickle. You press <<O>>.
D: turtleneck, C: creme brulee, and O: desk. You press <<C>>.
D: roulette wheel, C: treasure, and O: clover. You press <<O>>.
D: exhaust pipe, C: crumb, and O: gas mask. You press <<C>>.
D: stool, C: windowsill, and O: meerkat. You press <<O>>.
D: train car, C: checkers, and O: vacuum. You press <<D>>.
D: vegetable, C: fish, and O: meatball. You press <<C>>.
D: penlight, C: candelabra, and O: nail. You press <<O>>.
D: ink, C: sloth, and O: raincoat. You press <<D>>.
D: engine, C: fishnet stockings, and O: guinea pig. You press <<O>>.
D: treadmill, C: food processor, and O: paper. You press <<O>>.
D: insole, C: doorbell, and O: cardinal. You press <<D>>.
D: keg, C: pheasant, and O: rope. You press <<C>>.
D: buoy, C: tugboat, and O: sarcophagus. You press <<O>>.
D: knife, C: medal, and O: ruby. You press <<D>>.
D: cummerbund, C: calculator, and O: kangaroo. You press <<O>>.
D: jug, C: incubator, and O: batter. You press <<D>>.
D: calf, C: marker, and O: cookie sheet. You press <<D>>.
D: school bus, C: hotdog, and O: chisel. You press <<D>>.