You will be presented with triplets of objects, which will be assigned to the keys P, W, and Z.
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: pot, W: aquarium, and Z: grasshopper. You press <<P>>.
P: tripod, W: sparkler, and Z: payphone. You press <<W>>.
P: cassette, W: table, and Z: peanut butter. You press <<Z>>.
P: flipper, W: ferry, and Z: jeans. You press <<Z>>.
P: stake, W: remote control, and Z: washboard. You press <<W>>.
P: barrette, W: jack, and Z: switch. You press <<P>>.
P: polisher, W: bazooka, and Z: sim card. You press <<W>>.
P: gingerbread man, W: armor, and Z: bacon. You press <<W>>.
P: shoe polish, W: pulpit, and Z: unicycle. You press <<P>>.
P: beaker, W: chimney, and Z: nightstand. You press <<Z>>.
P: lawnmower, W: puppy, and Z: scone. You press <<Z>>.
P: home plate, W: lobster, and Z: padlock. You press <<W>>.
P: guinea pig, W: step stool, and Z: cement mixer. You press <<P>>.
P: groundhog, W: sword, and Z: arugula. You press <<P>>.
P: skirt, W: tablet, and Z: stiletto. You press <<W>>.
P: vending machine, W: amber, and Z: match. You press <<W>>.
P: cotton candy, W: loom, and Z: tank. You press <<W>>.
P: dustpan, W: leek, and Z: leopard. You press <<P>>.
P: switch, W: plaster cast, and Z: lid. You press <<P>>.
P: curling iron, W: kayak, and Z: cement mixer. You press <<W>>.