What are the wires on?
The wires are on the fence.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of   15
2     0  to the right of   11
3     2  to the right of   14
4     2  to the right of   11
5     3   to the left of    4
6     4  to the right of    3
7     4  to the right of    0
8     4  to the right of    8
9     4  to the right of    6
10    5  to the right of   17
11    6  to the right of   10
12    6   to the left of    4
13    6  to the right of   16
14    7               on    1
15    7               of    1
16    8  to the right of   15
17    8  to the right of   11
18    8   to the left of    4
19    8               of    0
20    9  to the right of   11
21   10   to the left of    6
22   10  to the right of   11
23   10   to the left of   16
24   10  to the right of   15
25   11   to the left of   17
26   11   to the left of    2
27   11   to the left of    0
28   11   to the left of    8
29   11   to the left of   10
30   11   to the left of   14
31   11   to the left of    9
32   11   to the left of   16
33   14   to the left of    2
34   14  to the right of   11
35   15               on   11
36   15   to the left of   17
37   15   to the left of   16
38   15   to the left of    8
39   15   to the left of   10
40   15   to the left of    0
41   16  to the right of   11
42   16  to the right of   10
43   16  to the right of   15
44   16   to the left of    6
45   17  to the right of   11
46   17   to the left of    5
47   17               of    0
48   17  to the right of   15