Which place is it?
It is a forest.
    src        edge_attr  dst
0     0        parked on   20
1     0  to the right of   16
2     0  to the right of    4
3     0  to the right of   20
4     1   to the left of   12
..  ...              ...  ...
93   21  to the right of    3
94   21   to the left of   18
95   21  to the right of   17
96   21  to the right of   16
97   21  to the right of   13

[98 rows x 3 columns]