You will be presented with triplets of objects, which will be assigned to the keys Y, H, 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.

Y: cobra, H: safety pin, and F: koala. You press <<H>>.
Y: lightning bug, H: safety pin, and F: marble. You press <<Y>>.
Y: tapestry, H: tooth, and F: wig. You press <<H>>.
Y: easter egg, H: mantle, and F: roulette wheel. You press <<F>>.
Y: gurney, H: rice, and F: wall. You press <<H>>.
Y: birdhouse, H: projector, and F: casserole. You press <<F>>.
Y: honeypot, H: cheesecake, and F: saw. You press <<F>>.
Y: lampshade, H: slug, and F: solar panel. You press <<H>>.
Y: meatball, H: charcoal, and F: headband. You press <<F>>.
Y: container, H: bomb, and F: rust. You press <<F>>.
Y: windshield wiper, H: comic book, and F: surfboard. You press <<H>>.
Y: pie, H: guinea pig, and F: cd player. You press <<F>>.
Y: dashboard, H: whale, and F: torso. You press <<H>>.
Y: backpack, H: pin, and F: fork. You press <<F>>.
Y: aardvark, H: hood, and F: truck. You press <<Y>>.
Y: scorpion, H: gourd, and F: frisbee. You press <<Y>>.
Y: sewing machine, H: warthog, and F: crucifix. You press <<H>>.
Y: christmas tree, H: clothespin, and F: shower cap. You press <<F>>.
Y: rake, H: can, and F: pliers. You press <<H>>.
Y: toy, H: gas mask, and F: tomato sauce. You press <<F>>.