Are there fences or baseballs in the picture?
Yes, there is a fence.
     src        edge_attr  dst
0      0   to the left of   31
1      0   to the left of   17
2      1           behind    4
3      2  to the right of    7
4      2  to the right of    6
..   ...              ...  ...
137   30   to the left of    2
138   30   to the left of   16
139   30  to the right of   13
140   31  to the right of    0
141   31  to the right of    4

[142 rows x 3 columns]