What is the field in front of?
The field is in front of the fence.
    src        edge_attr  dst
0     0   to the left of   11
1     0   to the left of    6
2     0   to the left of    1
3     0  to the right of   10
4     0   to the left of    7
..  ...              ...  ...
59   13  to the right of    8
60   13  to the right of    7
61   13  to the right of   12
62   13  to the right of   11
63   13  to the right of    6

[64 rows x 3 columns]