On which side is the helmet, the right or the left?
The helmet is on the left of the image.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   16
2     0   to the left of    3
3     0   to the left of   17
4     1  to the right of   10
..  ...              ...  ...
63   20               on   19
64   21   to the left of   15
65   21   to the left of   13
66   21   to the left of   11
67   21   to the left of    3

[68 rows x 3 columns]