Who is on the road?
The man is on the road.
    src        edge_attr  dst
0     0   to the left of   17
1     0   to the left of    2
2     1   to the left of    8
3     1   to the left of    7
4     1   to the left of   10
..  ...              ...  ...
62   16   to the left of    5
63   17  to the right of    0
64   17  to the right of   10
65   18   to the left of    9
66   18  to the right of    3

[67 rows x 3 columns]