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

R: eyeliner, P: mustache, and Q: pepper mill. You press <<P>>.
R: hair, P: coat, and Q: lego. You press <<Q>>.
R: eyepiece, P: pants, and Q: wheat. You press <<Q>>.
R: puffin, P: corkboard, and Q: knot. You press <<R>>.
R: marshmallow, P: lava, and Q: noisemaker. You press <<R>>.
R: calf, P: rhubarb, and Q: necklace. You press <<Q>>.
R: lettuce, P: whistle, and Q: beetle. You press <<P>>.
R: kitten, P: rocking chair, and Q: candy cane. You press <<Q>>.
R: hubcap, P: hamburger, and Q: blender. You press <<R>>.
R: screen, P: lumber, and Q: muffin. You press <<P>>.
R: nutcracker, P: cloud, and Q: icepick. You press <<R>>.
R: gourd, P: cream, and Q: pickle. You press <<P>>.
R: urn, P: toothbrush, and Q: grain. You press <<R>>.
R: soap, P: stethoscope, and Q: thermos. You press <<Q>>.
R: fire hydrant, P: bow, and Q: wrist. You press <<R>>.
R: gavel, P: woman, and Q: potpourri. You press <<Q>>.
R: scallop, P: dogfood, and Q: firecracker. You press <<Q>>.
R: wrap, P: doily, and Q: thermometer. You press <<Q>>.
R: buckle, P: grasshopper, and Q: dress. You press <<P>>.
R: pet food, P: stingray, and Q: paddle. You press <<R>>.