What's the fence in front of?
The fence is in front of the car.
     src       edge_attr  dst
0      0  to the left of    8
1      0  to the left of    2
2      0  to the left of   21
3      0  to the left of    4
4      0  to the left of    3
..   ...             ...  ...
97    22  to the left of   18
98    22  to the left of   19
99    23  to the left of   19
100   23  to the left of   18
101   23  to the left of    9

[102 rows x 3 columns]