What is the sign on?
The sign is on the platform.
    src        edge_attr  dst
0     0  to the right of   12
1     0   to the left of    1
2     0  to the right of    7
3     0  to the right of    5
4     0  to the right of    2
..  ...              ...  ...
60   15  to the right of    8
61   15  to the right of   11
62   15   to the left of   13
63   17               in   16
64   17   to the left of   14

[65 rows x 3 columns]