Where is the cone?
The traffic cone is on the field.
    src        edge_attr  dst
0     0      in front of   19
1     0   to the left of   16
2     0   to the left of    4
3     0               on   11
4     0   to the left of   21
..  ...              ...  ...
63   19  to the right of    1
64   21  to the right of    0
65   21  to the right of    1
66   21  to the right of   19
67   21         covering    5

[68 rows x 3 columns]