What do both the pole and the branch have in common?
The color, both the pole and the branch are green.
    src        edge_attr  dst
0     0          next to   13
1     0             near   13
2     0   to the left of   22
3     0   to the left of   23
4     3   to the left of   21
..  ...              ...  ...
62   24  to the right of   20
63   24  to the right of   26
64   24   to the left of   21
65   26   to the left of   24
66   26          holding   25

[67 rows x 3 columns]