What's in front of the trees?
The umbrella is in front of the trees.
     src        edge_attr  dst
0      0   to the left of    4
1      0   to the left of    9
2      0   to the left of   17
3      0   to the left of   16
4      1  to the right of   17
..   ...              ...  ...
97    17      in front of    3
98    17  to the right of    5
99    17  to the right of    7
100   18  to the right of    9
101   18  to the right of   17

[102 rows x 3 columns]