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

X: marmalade, Q: fountain pen, and S: bag. You press <<Q>>.
X: leech, Q: bean, and S: ice cube. You press <<X>>.
X: lawnmower, Q: turtle, and S: ribbon. You press <<Q>>.
X: boxer shorts, Q: bongo, and S: airbag. You press <<Q>>.
X: panther, Q: wheel, and S: graffiti. You press <<X>>.
X: skewer, Q: streetlight, and S: juice. You press <<Q>>.
X: javelin, Q: nacho, and S: yo-yo. You press <<Q>>.
X: camera, Q: espresso, and S: microscope. You press <<Q>>.
X: napkin, Q: hand, and S: fossil. You press <<Q>>.
X: cash register, Q: doily, and S: trunk. You press <<Q>>.
X: quill, Q: bikini, and S: eraser. You press <<Q>>.
X: pliers, Q: gun, and S: owl. You press <<S>>.
X: rhinoceros, Q: ashtray, and S: dolphin. You press <<Q>>.
X: cigar, Q: earplug, and S: tie. You press <<Q>>.
X: egg, Q: cup, and S: tortellini. You press <<Q>>.
X: eagle, Q: vending machine, and S: card. You press <<Q>>.
X: earplug, Q: spider web, and S: bunkbed. You press <<X>>.
X: cigarette butt, Q: mullet, and S: hummus. You press <<Q>>.
X: okra, Q: wrist, and S: needle. You press <<X>>.
X: eyedropper, Q: loincloth, and S: nail polish. You press <<S>>.