Is there a fence or a helmet in the photo?
Yes, there is a helmet.
    src        edge_attr  dst
0     0   to the left of    4
1     0  to the right of    3
2     0   to the left of    7
3     1   to the left of    4
4     2   to the left of    4
5     3   to the left of   16
6     3   to the left of    6
7     3   to the left of    0
8     3               on    2
9     4  to the right of    1
10    4  to the right of    0
11    4  to the right of    6
12    4  to the right of    2
13    5   to the left of   24
14    6   to the left of    4
15    6  to the right of    3
16    7  to the right of    0
17    9  to the right of   18
18    9  to the right of   22
19   10  to the right of   11
20   10  to the right of   22
21   11   to the left of   10
22   11   to the left of   21
23   11  to the right of   22
24   12  to the right of   20
25   12   to the left of   21
26   12  to the right of   22
27   12  to the right of   19
28   15  to the right of   21
29   16  to the right of    3
30   17  to the right of   22
31   18  to the right of   22
32   18   to the left of    9
33   19   to the left of   21
34   19   to the left of   12
35   20   to the left of   21
36   20               on   22
37   20   to the left of   12
38   21   to the left of   15
39   21  to the right of   19
40   21  to the right of   11
41   21  to the right of   12
42   21  to the right of   20
43   21  to the right of   22
44   22   to the left of    9
45   22   to the left of   10
46   22   to the left of   11
47   22   to the left of   12
48   22   to the left of   18
49   22   to the left of   17
50   22   to the left of   24
51   22   to the left of   21
52   24  to the right of   22
53   24  to the right of    5