The box is on what?
The box is on the tree.
     src        edge_attr  dst
0      0  to the right of   14
1      0   to the left of    5
2      0  to the right of    6
3      0   to the left of    9
4      0  to the right of   12
..   ...              ...  ...
109   18   to the left of    6
110   18  to the right of    7
111   18   to the left of   10
112   20   to the left of   10
113   20   to the left of    6

[114 rows x 3 columns]