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

S: notebook, P: plate, and R: wood. You press <<P>>.
S: periscope, P: brick, and R: ambulance. You press <<S>>.
S: brownie, P: magnifying glass, and R: mousetrap. You press <<S>>.
S: tomato, P: canister, and R: scooter. You press <<R>>.
S: bikini, P: jet, and R: laundry basket. You press <<P>>.
S: map, P: snowball, and R: puppy. You press <<P>>.
S: chips, P: squirt gun, and R: seahorse. You press <<S>>.
S: wasp, P: typewriter, and R: garbage truck. You press <<S>>.
S: clasp, P: water filter, and R: shoe. You press <<P>>.
S: match, P: crystal ball, and R: knitting needle. You press <<P>>.
S: glasses, P: checkbook, and R: springboard. You press <<R>>.
S: firecracker, P: blind, and R: mud. You press <<P>>.
S: whistle, P: freezer, and R: spring roll. You press <<S>>.
S: whip, P: stretcher, and R: jewel. You press <<R>>.
S: cigarette, P: thermos, and R: soda fountain. You press <<S>>.
S: cruise ship, P: platypus, and R: uniform. You press <<P>>.
S: lamppost, P: kilt, and R: charcoal. You press <<P>>.
S: badge, P: shoe polish, and R: deer. You press <<R>>.
S: lego, P: pug, and R: strainer. You press <<P>>.
S: pita, P: bookmark, and R: cleat. You press <<S>>.