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

R: scaffolding, S: gear, and W: spaghetti. You press <<W>>.
R: candy cane, S: peppermint, and W: hairspray. You press <<W>>.
R: drum, S: power line, and W: thorn. You press <<W>>.
R: knob, S: dragonfly, and W: polar bear. You press <<R>>.
R: weed, S: pita, and W: wrapping paper. You press <<W>>.
R: oilcan, S: water bottle, and W: paper towel. You press <<W>>.
R: ironing board, S: cupcake, and W: deodorant. You press <<S>>.
R: bikini, S: aloe, and W: marker. You press <<W>>.
R: mug, S: tortellini, and W: tadpole. You press <<W>>.
R: coal, S: scorpion, and W: bush. You press <<R>>.
R: bracelet, S: shears, and W: backscratcher. You press <<R>>.
R: sea urchin, S: butterfly, and W: leek. You press <<S>>.
R: crow, S: thermos, and W: lectern. You press <<R>>.
R: torpedo, S: stretcher, and W: crossbow. You press <<S>>.
R: anvil, S: cabinet, and W: brass knuckles. You press <<S>>.
R: swan, S: daisy, and W: tank. You press <<W>>.
R: toad, S: gravestone, and W: gavel. You press <<R>>.
R: arm, S: birdbath, and W: gem. You press <<R>>.
R: insole, S: barbed wire, and W: peeler. You press <<R>>.
R: raspberry, S: beard, and W: coffee bean. You press <<S>>.