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

I: gearshift, O: tee, and X: cornmeal. You press <<X>>.
I: noose, O: crutch, and X: shawl. You press <<O>>.
I: handle, O: belt buckle, and X: silverware. You press <<O>>.
I: cobra, O: videogame, and X: handkerchief. You press <<X>>.
I: buckle, O: road sign, and X: shopping basket. You press <<X>>.
I: shaker, O: pocket watch, and X: coyote. You press <<I>>.
I: waffle iron, O: buffet, and X: telegraph. You press <<X>>.
I: fish, O: truck, and X: cobra. You press <<O>>.
I: gurney, O: parking meter, and X: t-shirt. You press <<I>>.
I: riser, O: yogurt, and X: beet. You press <<I>>.
I: punch, O: turf, and X: drawer. You press <<X>>.
I: polygraph, O: pea, and X: aquarium. You press <<I>>.
I: ferret, O: sandal, and X: buggy. You press <<I>>.
I: vise, O: groundhog, and X: coffee. You press <<I>>.
I: chaps, O: penguin, and X: chili. You press <<X>>.
I: snowboard, O: dial, and X: towel rack. You press <<O>>.
I: pantyhose, O: record, and X: coffin. You press <<X>>.
I: zipper, O: parrot, and X: contact lens. You press <<I>>.
I: combination lock, O: cocoon, and X: trolley. You press <<O>>.
I: eye, O: caterpillar, and X: gravestone. You press <<X>>.