What's the street light on?
The street lamp is on the bridge.
     src       edge_attr  dst
0      0           below   14
1      0           below   12
2      0           below   13
3      0           below   10
4      0           below   11
..   ...             ...  ...
121   21  to the left of    7
122   21  to the left of    6
123   21  to the left of   20
124   22  to the left of   20
125   22  to the left of    1

[126 rows x 3 columns]