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

S: backdrop, N: marijuana, and F: trailer. You press <<N>>.
S: doll, N: eggshell, and F: tree. You press <<S>>.
S: curtain, N: bush, and F: ice cream. You press <<F>>.
S: frisbee, N: water bottle, and F: chicken wire. You press <<F>>.
S: fossil, N: stirrup, and F: canvas. You press <<F>>.
S: bag, N: twig, and F: string cheese. You press <<N>>.
S: ribbon, N: crystal, and F: lego. You press <<S>>.
S: screw, N: blouse, and F: slipper. You press <<S>>.
S: dashboard, N: hydrant, and F: paperweight. You press <<F>>.
S: wall, N: cardboard, and F: electric chair. You press <<F>>.
S: letter opener, N: fuse, and F: dolly. You press <<N>>.
S: dumbwaiter, N: air pump, and F: ping-pong table. You press <<S>>.
S: grain, N: steak, and F: tile. You press <<F>>.
S: wheelbarrow, N: muff, and F: arugula. You press <<N>>.
S: dishrag, N: barnacle, and F: sail. You press <<S>>.
S: birthday cake, N: bus, and F: radar. You press <<S>>.
S: mouth, N: dog, and F: coin. You press <<N>>.
S: marble, N: orange rind, and F: vulture. You press <<S>>.
S: possum, N: trolley, and F: chainsaw. You press <<N>>.
S: top hat, N: beer, and F: watch. You press <<S>>.