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

M: cement mixer, D: lava, and X: gutter. You press <<X>>.
M: walker, D: mustard, and X: steering wheel. You press <<D>>.
M: polaroid, D: checkbook, and X: soy sauce. You press <<X>>.
M: crow, D: penguin, and X: gingerbread man. You press <<X>>.
M: whistle, D: doormat, and X: shirt. You press <<M>>.
M: seagull, D: almond, and X: pug. You press <<D>>.
M: flan, D: mousepad, and X: teddy bear. You press <<M>>.
M: sailboat, D: oilcan, and X: drum. You press <<D>>.
M: noodle, D: turtleneck, and X: coin. You press <<D>>.
M: toaster, D: jellyfish, and X: stopwatch. You press <<D>>.
M: chihuahua, D: shrimp, and X: hairnet. You press <<D>>.
M: dumpster, D: emerald, and X: razor. You press <<D>>.
M: bowtie, D: tack, and X: goggles. You press <<X>>.
M: ice pack, D: boxer shorts, and X: gingerbread man. You press <<X>>.
M: keg, D: crayfish, and X: wrench. You press <<D>>.
M: buggy, D: chest, and X: hearing aid. You press <<X>>.
M: compass, D: meat, and X: lightning bug. You press <<D>>.
M: grits, D: fence, and X: rose. You press <<D>>.
M: gem, D: shovel, and X: cloud. You press <<X>>.
M: cougar, D: mascara, and X: pretzel. You press <<D>>.