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

A: stuffing, O: shrimp, and I: aluminum foil. You press <<I>>.
A: lemon, O: plate, and I: lettuce. You press <<O>>.
A: root, O: stump, and I: throne. You press <<I>>.
A: hairdryer, O: sand, and I: squeegee. You press <<O>>.
A: cot, O: earring, and I: basketball hoop. You press <<O>>.
A: rosary, O: coyote, and I: cannon. You press <<O>>.
A: calculator, O: cheetah, and I: retainer. You press <<O>>.
A: tricycle, O: copier, and I: footbath. You press <<I>>.
A: macadamia, O: recorder, and I: key. You press <<A>>.
A: guinea pig, O: peanut butter, and I: ashtray. You press <<I>>.
A: cocktail, O: lid, and I: punching bag. You press <<A>>.
A: water fountain, O: playing card, and I: alligator. You press <<O>>.
A: cardigan, O: swab, and I: ottoman. You press <<A>>.
A: airboat, O: toothpaste, and I: chisel. You press <<O>>.
A: moss, O: dandelion, and I: sunglasses. You press <<I>>.
A: wetsuit, O: hammock, and I: cornmeal. You press <<I>>.
A: cheese, O: banana split, and I: metal detector. You press <<I>>.
A: staple, O: gingerbread man, and I: rat. You press <<A>>.
A: butterfly, O: gear, and I: piano. You press <<A>>.
A: shoulder, O: pool table, and I: container. You press <<A>>.