Which place is it?
It is a forest.
    src        edge_attr  dst
0     0               on   13
1     0   to the left of    7
2     0  to the right of    4
3     1   to the left of   15
4     1   to the left of   14
..  ...              ...  ...
76   17   to the left of   10
77   17   to the left of   11
78   17   to the left of    3
79   17  to the right of    6
80   17   to the left of    2

[81 rows x 3 columns]