You will be presented with triplets of objects, which will be assigned to the keys P, Z, 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.

P: hairpin, Z: anvil, and W: tank. You press <<P>>.
P: shower cap, Z: mitten, and W: urinal. You press <<Z>>.
P: seaweed, Z: crank, and W: sled. You press <<P>>.
P: lawnmower, Z: arrow, and W: tongs. You press <<P>>.
P: pelican, Z: glasses, and W: wind chimes. You press <<Z>>.
P: snail, Z: kazoo, and W: tile. You press <<Z>>.
P: hedgehog, Z: clipper, and W: scaffold. You press <<W>>.
P: grille, Z: candy cane, and W: rocking horse. You press <<P>>.
P: pacifier, Z: cutting board, and W: soup. You press <<P>>.
P: telephone pole, Z: steering wheel, and W: traffic light. You press <<Z>>.
P: chive, Z: cabinet, and W: tambourine. You press <<W>>.
P: espresso, Z: barbed wire, and W: marshmallow. You press <<Z>>.
P: bungee, Z: bison, and W: screw. You press <<Z>>.
P: meerkat, Z: blimp, and W: tie. You press <<P>>.
P: metal detector, Z: hail, and W: tambourine. You press <<Z>>.
P: extinguisher, Z: chute, and W: gumdrop. You press <<W>>.
P: lightbulb, Z: hot-water bottle, and W: salami. You press <<W>>.
P: finger, Z: album, and W: medal. You press <<P>>.
P: straw, Z: rooster, and W: wallpaper. You press <<W>>.
P: photograph, Z: bottle, and W: saddle. You press <<W>>.