P3 A basic wooden railway set contains the pieces shown in Figure 3 The task is to connect these pieces into a railway that has no overlapping tracks and no loose ends where a train could run off onto the floor.
https://cdn.discordapp.com/attachments/586652526728970240/586689632092291082/Pieces.PNG
I don't know how to implement the problem in Python, I have AIMA framework, and I have to use Depth First Search, but I have no idea how to implements the code.