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