What is the pine tree in front of?
The pine is in front of the hill.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of    5
2     1   to the left of   17
3     1   to the left of   15
4     1   to the left of    9
..  ...              ...  ...
66   20  to the right of   10
67   20   to the left of   13
68   20  to the right of   16
69   20  to the right of   19
70   23               on   22

[71 rows x 3 columns]