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

X: butterfly, I: matchbox, and Q: hammock. You press <<I>>.
X: glue, I: costume, and Q: beaver. You press <<Q>>.
X: fly, I: patty, and Q: hockey stick. You press <<I>>.
X: train car, I: rock, and Q: handcuff. You press <<I>>.
X: landmine, I: palm tree, and Q: handkerchief. You press <<I>>.
X: coffee filter, I: microwave, and Q: lumber. You press <<Q>>.
X: peanut, I: cranberry, and Q: stethoscope. You press <<Q>>.
X: pennant, I: eggnog, and Q: file. You press <<I>>.
X: cereal, I: stove, and Q: puck. You press <<X>>.
X: quad, I: filing cabinet, and Q: spider web. You press <<Q>>.
X: cloud, I: anteater, and Q: thorn. You press <<I>>.
X: filing cabinet, I: knob, and Q: oar. You press <<Q>>.
X: panther, I: periscope, and Q: warthog. You press <<I>>.
X: hamster, I: knee, and Q: cupcake. You press <<Q>>.
X: treadmill, I: magnifying glass, and Q: space shuttle. You press <<X>>.
X: toaster, I: bear, and Q: tile. You press <<X>>.
X: tortellini, I: magnifying glass, and Q: hotdog. You press <<I>>.
X: chinaware, I: easter egg, and Q: pet food. You press <<X>>.
X: mosquito, I: mushroom, and Q: cockatoo. You press <<I>>.
X: space shuttle, I: smoke alarm, and Q: robe. You press <<Q>>.