Are there fences in front of the tree?
No, there is a person in front of the tree.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   10
2     0   to the left of    9
3     0   to the left of    3
4     0   to the left of    2
..  ...              ...  ...
56   13  to the right of    0
57   14   to the left of   10
58   14   to the left of    6
59   14   to the left of   11
60   14   to the left of   13

[61 rows x 3 columns]