You will be presented with triplets of objects, which will be assigned to the keys H, E, and R.
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: lumber, E: lid, and R: gauge. You press <<H>>.
H: knitting, E: swan, and R: screw. You press <<E>>.
H: rubber band, E: olive, and R: fountain pen. You press <<E>>.
H: ostrich, E: shoe, and R: towel rack. You press <<E>>.
H: highlighter, E: sandpaper, and R: van. You press <<R>>.
H: brooch, E: caterpillar, and R: scoreboard. You press <<E>>.
H: mustache, E: violin, and R: lightbulb. You press <<H>>.
H: test tube, E: switch, and R: saltshaker. You press <<E>>.
H: vent, E: mashed potato, and R: tie. You press <<E>>.
H: fire hydrant, E: bamboo, and R: bell. You press <<E>>.
H: wreath, E: crayon, and R: bacon. You press <<E>>.
H: rifle, E: paint, and R: stool. You press <<E>>.
H: pinecone, E: pantsuit, and R: toilet paper. You press <<H>>.
H: tag, E: viewfinder, and R: ladder. You press <<H>>.
H: hairpin, E: bun, and R: can. You press <<H>>.
H: straightjacket, E: blowfish, and R: baton. You press <<E>>.
H: photograph, E: goblet, and R: pony. You press <<E>>.
H: frog, E: shoehorn, and R: salami. You press <<E>>.
H: hoodie, E: flower, and R: leopard. You press <<H>>.
H: dirt bike, E: stroller, and R: oil. You press <<R>>.