Reconstruction Attempts Reconstruction Attempt #12 (full stop) Reconstruction Attempt #10 (track faults) Reconstruction Attempt #5 (inadequate rules) Reconstruction Attempt #7 (nexus) Reconstruction Attempt #9 (junction error) Reconstruction Attempt #14 (natural causes) Reconstruction Attempt #15 (track obstruction) Reconstruction Attempt #16 (spiraling out) Reconstruction Attempt #3 (descending staircase)