What is the sign on?
The sign is on the scaffolding.
    src        edge_attr  dst
0     0   to the left of   27
1     0   to the left of   12
2     0  to the right of    7
3     0  to the right of   18
4     1  to the right of   14
..  ...              ...  ...
79   27   to the left of   26
80   27  to the right of    8
81   27   to the left of    3
82   27  to the right of   12
83   27  to the right of    0

[84 rows x 3 columns]