What is hanging over the tree?
The streetlight is hanging over the tree.
     src        edge_attr  dst
0      1   to the left of   12
1      1  to the right of   22
2      1  to the right of   17
3      1  to the right of   24
4      1   to the left of   30
..   ...              ...  ...
126   30  to the right of    9
127   30  to the right of   22
128   30  to the right of    1
129   30  to the right of    8
130   30  to the right of   23

[131 rows x 3 columns]