Do you see a fence or a helmet in the picture?
Yes, there is a fence.
    src        edge_attr  dst
0     0  to the right of    5
1     0               in   14
2     0   to the left of    7
3     1  to the right of    5
4     1  to the right of    6
5     4               on   16
6     4  to the right of    5
7     4  to the right of    6
8     5   to the left of    4
9     5   to the left of    9
10    5   to the left of   11
11    5   to the left of    0
12    5   to the left of    1
13    5   to the left of   12
14    6   to the left of   12
15    6   to the left of   11
16    6   to the left of    9
17    6   to the left of    4
18    6   to the left of    1
19    7          leaving    2
20    7  to the right of    0
21    8   to the left of   15
22    8   to the left of   10
23    8   to the left of    9
24    9  to the right of    8
25    9  to the right of    5
26    9  to the right of    6
27    9  to the right of   13
28   10          leaving    2
29   10  to the right of    8
30   10             near   11
31   10               in    5
32   11          next to   10
33   11  to the right of    5
34   11  to the right of    6
35   11             near   10
36   12  to the right of    5
37   12  to the right of    6
38   12  to the right of   13
39   13   to the left of    9
40   13   to the left of   12
41   15  to the right of    8