Who is in front of the fence?
The boys are in front of the fence.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   19
2     0   to the left of    2
3     0   to the left of    1
4     0   to the left of    4
..  ...              ...  ...
64   22   to the left of   15
65   22   to the left of   20
66   22   to the left of   14
67   23  to the right of   15
68   23  to the right of   13

[69 rows x 3 columns]