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

F: submarine, S: toast, and Z: curling iron. You press <<F>>.
F: ostrich, S: towel rack, and Z: sardine. You press <<S>>.
F: hedgehog, S: skewer, and Z: radiator. You press <<F>>.
F: padlock, S: finger, and Z: cake mix. You press <<F>>.
F: raft, S: popsicle, and Z: paper plate. You press <<F>>.
F: duffel bag, S: punch, and Z: ice cream. You press <<Z>>.
F: baseball glove, S: red carpet, and Z: stilt. You press <<S>>.
F: revolver, S: motorcycle, and Z: spear. You press <<S>>.
F: spout, S: awning, and Z: weather vane. You press <<S>>.
F: safety pin, S: fountain pen, and Z: poppy. You press <<Z>>.
F: piano, S: brussels sprouts, and Z: crystal. You press <<F>>.
F: toolbox, S: ski, and Z: roadsweeper. You press <<S>>.
F: splinter, S: spout, and Z: branch. You press <<S>>.
F: broccoli, S: suspenders, and Z: lightning bug. You press <<S>>.
F: comic book, S: doorstop, and Z: potholder. You press <<S>>.
F: leash, S: groundhog, and Z: can opener. You press <<S>>.
F: turban, S: loom, and Z: hot tub. You press <<F>>.
F: wheelchair, S: honeypot, and Z: car door. You press <<S>>.
F: watering can, S: buffet, and Z: omelet. You press <<F>>.
F: puffin, S: potholder, and Z: place mat. You press <<F>>.