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

F: metronome, O: flamethrower, and H: razor blade. You press <<O>>.
F: shoe, O: parachute, and H: crouton. You press <<H>>.
F: zucchini, O: cobra, and H: home plate. You press <<F>>.
F: marker, O: incense, and H: briefcase. You press <<O>>.
F: rifle, O: hammer, and H: album. You press <<H>>.
F: hobbyhorse, O: gate, and H: freezer. You press <<F>>.
F: bag, O: coal, and H: bumper. You press <<O>>.
F: catfish, O: baby, and H: underwear. You press <<H>>.
F: scraper, O: lunchbox, and H: straightjacket. You press <<H>>.
F: stir fry, O: barrel, and H: dragonfly. You press <<O>>.
F: potpourri, O: football, and H: backscratcher. You press <<O>>.
F: ottoman, O: centerpiece, and H: crown. You press <<F>>.
F: anteater, O: mouse, and H: foam. You press <<F>>.
F: snowsuit, O: skin, and H: birdbath. You press <<H>>.
F: sugar cube, O: gasket, and H: cassette. You press <<F>>.
F: blueberry, O: cleat, and H: car seat. You press <<F>>.
F: centerpiece, O: pants, and H: pencil sharpener. You press <<O>>.
F: submarine, O: pencil, and H: catfish. You press <<O>>.
F: bell pepper, O: peanut butter, and H: key. You press <<H>>.
F: sundae, O: pitchfork, and H: wall. You press <<F>>.