Are there both helmets and fences in this image?
Yes, there are both a fence and a helmet.
    src        edge_attr  dst
0     0   to the left of    5
1     1   to the left of   13
2     1  to the right of   12
3     2   to the left of   12
4     2               of    4
5     3  to the right of    8
6     4  to the right of    9
7     4     jumping over    6
8     4          wearing    8
9     5  to the right of    0
10    5  to the right of    8
11    6   to the left of   13
12    8               on    4
13    8   to the left of    5
14    8   to the left of    3
15    9   to the left of    4
16   12  to the right of    2
17   12   to the left of    1
18   12               of    4
19   13  to the right of    1
20   13  to the right of    6