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

W: chest, C: saltshaker, and U: pet food. You press <<W>>.
W: polaroid, C: dolphin, and U: dumpster. You press <<U>>.
W: manatee, C: oilcan, and U: lipstick. You press <<W>>.
W: cooker, C: first-aid kit, and U: rhubarb. You press <<C>>.
W: lawnmower, C: cardboard, and U: blueberry. You press <<C>>.
W: mullet, C: breadbox, and U: screwdriver. You press <<U>>.
W: macadamia, C: pogo stick, and U: shell. You press <<C>>.
W: target, C: skull, and U: mouse. You press <<U>>.
W: shredder, C: trowel, and U: nail file. You press <<C>>.
W: pennant, C: rope, and U: stapler. You press <<W>>.
W: walker, C: bull, and U: ostrich. You press <<W>>.
W: playpen, C: space shuttle, and U: candy cane. You press <<W>>.
W: bull, C: batter, and U: penlight. You press <<U>>.
W: kettle, C: oar, and U: blueberry. You press <<U>>.
W: handle, C: bench, and U: bowl. You press <<C>>.
W: mousepad, C: squeegee, and U: marble. You press <<W>>.
W: piggy bank, C: windowsill, and U: ice-cream cone. You press <<U>>.
W: harp, C: cheesecake, and U: magnifier. You press <<C>>.
W: goggles, C: knob, and U: egg roll. You press <<U>>.
W: olive, C: bacon, and U: baton. You press <<U>>.