Where in the image is the fence, in the top or in the bottom?
The fence is in the top of the image.
     src        edge_attr  dst
0      0  to the right of   24
1      0   to the left of   11
2      1               on    0
3      1  to the right of   24
4      1   to the left of   11
..   ...              ...  ...
100   25  to the right of   13
101   25  to the right of   14
102   25  to the right of   17
103   26  to the right of   21
104   26   to the left of    7

[105 rows x 3 columns]