Where are the street lights?
The street lights are in the parking lot.
     src        edge_attr  dst
0      0  to the right of    1
1      0   to the left of    3
2      0   to the left of   18
3      0  to the right of    5
4      0   to the left of    4
..   ...              ...  ...
137   23   to the left of    3
138   23   to the left of   18
139   23   to the left of    0
140   23   to the left of   21
141   23   to the left of   17

[142 rows x 3 columns]