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

H: fireplace, X: tank, and W: nail file. You press <<X>>.
H: credit card, X: rake, and W: bread. You press <<X>>.
H: button, X: sickle, and W: blinder. You press <<H>>.
H: gravel, X: bolo tie, and W: dolly. You press <<X>>.
H: muffin, X: saffron, and W: cabbage. You press <<X>>.
H: crystal ball, X: scalpel, and W: ballot box. You press <<H>>.
H: rosary, X: iceskate, and W: pine needle. You press <<H>>.
H: skewer, X: ukulele, and W: triangle. You press <<H>>.
H: hydrant, X: birdhouse, and W: pitcher. You press <<X>>.
H: electric chair, X: bean, and W: boxer shorts. You press <<H>>.
H: cabbage, X: noodle, and W: soap. You press <<W>>.
H: tube top, X: gift, and W: paperclip. You press <<X>>.
H: kimono, X: pea, and W: suspenders. You press <<X>>.
H: hotplate, X: sardine, and W: crab. You press <<H>>.
H: handkerchief, X: parachute, and W: cereal. You press <<W>>.
H: fire hydrant, X: wood, and W: mulberry. You press <<W>>.
H: ladle, X: pencil, and W: chip. You press <<H>>.
H: teacup, X: tupperware, and W: key. You press <<W>>.
H: centrifuge, X: cigarette butt, and W: teapot. You press <<H>>.
H: tuba, X: quesadilla, and W: hatchet. You press <<W>>.