You will be presented with triplets of objects, which will be assigned to the keys A, O, 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.

A: canister, O: wine bottle, and F: fire. You press <<F>>.
A: duct, O: fire hydrant, and F: washcloth. You press <<F>>.
A: generator, O: birdbath, and F: bracket. You press <<O>>.
A: drawer, O: aircraft carrier, and F: meat grinder. You press <<F>>.
A: headphones, O: rag, and F: pulpit. You press <<O>>.
A: locker, O: root, and F: file. You press <<A>>.
A: coffee bean, O: iguana, and F: ant. You press <<A>>.
A: wasp, O: dishwasher, and F: paperclip. You press <<A>>.
A: warthog, O: rooster, and F: thermos. You press <<F>>.
A: jeans, O: music box, and F: walker. You press <<A>>.
A: asparagus, O: muff, and F: cat. You press <<A>>.
A: incense, O: place mat, and F: football. You press <<O>>.
A: grass, O: awning, and F: stair. You press <<O>>.
A: silicone, O: chess piece, and F: star fruit. You press <<F>>.
A: motherboard, O: turbine, and F: papaya. You press <<F>>.
A: beehive, O: warthog, and F: cheese. You press <<O>>.
A: crumb, O: juicer, and F: toilet. You press <<F>>.
A: tiger, O: swordfish, and F: watermelon. You press <<F>>.
A: meerkat, O: mold, and F: sparkler. You press <<A>>.
A: fountain pen, O: slot machine, and F: panther. You press <<F>>.