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

O: sunroof, W: flashlight, and K: bottle opener. You press <<O>>.
O: christmas tree, W: teacup, and K: memory stick. You press <<K>>.
O: yak, W: birthday cake, and K: potpourri. You press <<W>>.
O: clipper, W: seafood, and K: basketball. You press <<O>>.
O: chandelier, W: battery, and K: grater. You press <<K>>.
O: pocket watch, W: chopsticks, and K: baseball bat. You press <<O>>.
O: juice, W: whiteboard, and K: drain. You press <<O>>.
O: lunchbox, W: slug, and K: cocoon. You press <<O>>.
O: butterfly, W: truck, and K: footbath. You press <<W>>.
O: coil, W: brace, and K: lamb. You press <<K>>.
O: shell, W: outfit, and K: tape recorder. You press <<K>>.
O: tool, W: earwig, and K: hammock. You press <<O>>.
O: cornhusk, W: jalapeno, and K: fire hydrant. You press <<K>>.
O: tugboat, W: walker, and K: hoodie. You press <<O>>.
O: machine gun, W: jar, and K: jack. You press <<W>>.
O: wine, W: piano, and K: worm. You press <<K>>.
O: snowman, W: bedpan, and K: boxing gloves. You press <<W>>.
O: photo booth, W: shoehorn, and K: skirt. You press <<K>>.
O: girl, W: walker, and K: coffee bean. You press <<K>>.
O: hard disk, W: loveseat, and K: water cooler. You press <<W>>.