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

D: swordfish, C: bumper, and I: lavender. You press <<D>>.
D: cracker, C: retainer, and I: pear. You press <<C>>.
D: smoke alarm, C: baby, and I: record player. You press <<C>>.
D: aircraft carrier, C: frog, and I: headphones. You press <<I>>.
D: laser pointer, C: first-aid kit, and I: trailer. You press <<I>>.
D: fire alarm, C: rust, and I: target. You press <<C>>.
D: bear, C: velcro, and I: coyote. You press <<C>>.
D: wheat, C: viewfinder, and I: sweatsuit. You press <<C>>.
D: overalls, C: wheat, and I: guardrail. You press <<I>>.
D: hairspray, C: leek, and I: bulletin board. You press <<I>>.
D: iceskate, C: goalpost, and I: taxi. You press <<D>>.
D: road sign, C: snail, and I: microscope. You press <<I>>.
D: coffee bean, C: tarantula, and I: knee. You press <<D>>.
D: water heater, C: lab coat, and I: blower. You press <<C>>.
D: clipper, C: catfish, and I: cheese. You press <<C>>.
D: hamburger, C: paperweight, and I: jukebox. You press <<D>>.
D: crank, C: gorilla, and I: maple syrup. You press <<D>>.
D: hummus, C: juice, and I: coverall. You press <<I>>.
D: wetsuit, C: spam, and I: banana split. You press <<D>>.
D: prism, C: dishwashing liquid, and I: kazoo. You press <<I>>.