What is the graffiti on?
The graffiti is on the pole.
    src        edge_attr  dst
0     0  to the right of    5
1     0  to the right of    1
2     0  to the right of   21
3     0  to the right of   18
4     1   to the left of    0
..  ...              ...  ...
66   21   to the left of    9
67   21   to the left of    0
68   21  to the right of   16
69   21   to the left of   15
70   21   to the left of   18

[71 rows x 3 columns]