If there’s water without a bridge and you have to swim across, instead we could build a rope bridge out of the string. We would braid the string together into two strong, thick ropes. Then, I would build four posts and put two of them on either side of the water. For now, you have to keep swimming across until your bridge is finished. Then you would fasten one side of the rope to one pole one side of the water, and fasten the other end of the rope to the post on the other side of the water. Do the same with the second rope. Then, lay the boards so that each board lays on both ropes. Then nail the boards to the rope so that you can walk on the boards which are attached to the ropes. Now make two more ropes and tie them above the other ropes, so that you have handles and don’t fall off the bridge. Now you don’t have to swim across the river because we have a bridge!