A street has a line of five houses next to each other on one side of the road. The five houses all have front doors that are painted a different colour. A student looks at the houses from the opposite side of the road. The student labels them according to the colour of the front door, and records which houses are to the left and which houses are to the right of each house.
| blue | green | pink | red | yellow | |
| houses to the left | blue red yellow | blue green red yellow | blue | blue red | |
| houses to the right | green pink red yellow | pink | green pink yellow | green pink |