Are there any cars or shields?
No, there are no cars or shields.
     src        edge_attr  dst
0      0   to the left of   22
1      0  to the right of    9
2      0   to the left of   11
3      0   to the left of   27
4      0  to the right of   25
..   ...              ...  ...
199   30   to the left of   24
200   30   to the left of    0
201   30   to the left of   10
202   30   to the left of   13
203   30   to the left of    5

[204 rows x 3 columns]