You will be presented with triplets of objects, which will be assigned to the keys C, R, and Q.
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.

C: scanner, R: boa, and Q: pineapple. You press <<C>>.
C: barrel, R: graffiti, and Q: nightshirt. You press <<R>>.
C: doorknob, R: apple tree, and Q: earplug. You press <<C>>.
C: shredder, R: brush, and Q: pickle. You press <<C>>.
C: arugula, R: lion, and Q: pepper. You press <<R>>.
C: staple gun, R: eggbeater, and Q: tamale. You press <<Q>>.
C: revolver, R: polar bear, and Q: batter. You press <<R>>.
C: scorpion, R: snowman, and Q: train car. You press <<Q>>.
C: elbow, R: carousel, and Q: clay. You press <<C>>.
C: walker, R: shoelace, and Q: stilt. You press <<C>>.
C: chain, R: dishwashing liquid, and Q: knot. You press <<R>>.
C: otter, R: pencil sharpener, and Q: windowsill. You press <<C>>.
C: aardvark, R: chihuahua, and Q: saltshaker. You press <<Q>>.
C: jeans, R: grasshopper, and Q: bowtie. You press <<R>>.
C: kayak, R: map, and Q: machine gun. You press <<R>>.
C: duster, R: padlock, and Q: lavender. You press <<R>>.
C: wolf, R: pinwheel, and Q: giraffe. You press <<R>>.
C: aquarium, R: beachball, and Q: lamp. You press <<R>>.
C: tack, R: ink, and Q: clover. You press <<Q>>.
C: sailboat, R: magnet, and Q: door. You press <<C>>.