Are there men to the left of the person that is in front of the tree?
No, the man is to the right of the skater.
    src        edge_attr  dst
0     0           behind    9
1     0   to the left of   12
2     0   to the left of   11
3     0   to the left of    2
4     0   to the left of    1
..  ...              ...  ...
62   13   to the left of    5
63   14   to the left of    1
64   14   to the left of    2
65   14   to the left of   11
66   14  to the right of    9

[67 rows x 3 columns]