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

G: swordfish, U: screen, and F: water heater. You press <<G>>.
G: buffet, U: walker, and F: viewfinder. You press <<G>>.
G: tank, U: bottle, and F: guitar. You press <<F>>.
G: turnstile, U: pulley, and F: snorkel. You press <<U>>.
G: tape measure, U: collar, and F: toy. You press <<F>>.
G: sugar cube, U: flipper, and F: bench. You press <<G>>.
G: microphone, U: doormat, and F: grill. You press <<G>>.
G: tuba, U: treadmill, and F: marmalade. You press <<F>>.
G: pipe, U: cookie, and F: mouse. You press <<U>>.
G: duct, U: man, and F: outfit. You press <<G>>.
G: watering can, U: punch, and F: light switch. You press <<F>>.
G: bank, U: chalk, and F: lamp. You press <<F>>.
G: croissant, U: waffle iron, and F: duster. You press <<F>>.
G: mango, U: towel, and F: crouton. You press <<U>>.
G: razor, U: tape, and F: playpen. You press <<F>>.
G: car, U: stump, and F: slug. You press <<G>>.
G: screen, U: seed, and F: boy. You press <<G>>.
G: cornmeal, U: skewer, and F: tortilla. You press <<U>>.
G: mat, U: towel, and F: odometer. You press <<F>>.
G: pecan, U: rag, and F: pine needle. You press <<U>>.