Is the boy underwear green or black?
The underwear is green.
    src        edge_attr  dst
0     1   to the left of    3
1     1   to the left of    4
2     1   to the left of    5
3     2  to the right of   12
4     2  to the right of    6
..  ...              ...  ...
66   23   to the left of    7
67   23   to the left of    5
68   23   to the left of   13
69   23   to the left of   19
70   23   to the left of   18

[71 rows x 3 columns]