Is this a fire truck or a tractor?
This is a tractor.
     src        edge_attr  dst
0      0  to the right of    1
1      0   to the left of    3
2      0  to the right of    6
3      0   to the left of   19
4      1   to the left of    0
..   ...              ...  ...
256   34   to the left of   20
257   34   to the left of   15
258   34   to the left of   19
259   34  to the right of   13
260   34   to the left of   11

[261 rows x 3 columns]