Is the fence in the bottom part or in the top of the picture?
The fence is in the top of the image.
    src        edge_attr  dst
0     0               on   13
1     3  to the right of   16
2     3   to the left of    9
3     6               on    7
4     8               of   12
5     9               on    7
6     9  to the right of    3
7    10  to the right of   17
8    10               on    7
9    10  to the right of   12
10   11               on    7
11   12   to the left of   10
12   15               on    7
13   16               on    7
14   16   to the left of    3
15   17   to the left of   10