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

K: doll, R: power line, and A: ice cube. You press <<R>>.
K: grapevine, R: eggbeater, and A: crumb. You press <<K>>.
K: doorstop, R: lamp, and A: machete. You press <<A>>.
K: cat, R: brake, and A: outfit. You press <<R>>.
K: flask, R: peanut butter, and A: belt. You press <<R>>.
K: detonator, R: stem, and A: vest. You press <<K>>.
K: speedometer, R: basket, and A: station wagon. You press <<R>>.
K: charcoal, R: boulder, and A: thread. You press <<A>>.
K: beet, R: walker, and A: lemon. You press <<R>>.
K: icicle, R: ping-pong table, and A: board. You press <<K>>.
K: cornmeal, R: organ, and A: air pump. You press <<K>>.
K: notebook, R: skunk, and A: razor. You press <<R>>.
K: gurney, R: fencepost, and A: pretzel. You press <<A>>.
K: hood, R: snowboard, and A: wasp. You press <<A>>.
K: tostada, R: petri dish, and A: skunk. You press <<K>>.
K: road sign, R: armor, and A: bandanna. You press <<A>>.
K: lighter, R: telegraph, and A: sugar cube. You press <<A>>.
K: cannonball, R: snake, and A: face mask. You press <<A>>.
K: doll, R: ice cube, and A: power line. You press <<A>>.
K: mosquito net, R: mustard, and A: flask. You press <<K>>.