What's on the seat?
The helmet is on the seat.
    src        edge_attr  dst
0     0             near    8
1     2  to the right of   10
2     2  to the right of   12
3     3               in    0
4     5               in    4
5     6  to the right of   12
6     6   to the left of   11
7     6   to the left of   13
8     7               on   14
9     7          wearing   11
10    7       sitting on   14
11    7          wearing    9
12    7               on   15
13    7  to the right of    8
14    8               on   14
15    8               on   15
16    8       sitting on   14
17    8          wearing   11
18    8          wearing    9
19    8  to the right of   12
20    8               in   12
21    8             near    0
22    8             with    9
23    8             with   14
24    8               by   15
25    8   to the left of    7
26    8  to the right of   10
27    9  to the right of   12
28    9  to the right of   10
29    9               on   14
30   10               on    2
31   10   to the left of    2
32   10   to the left of    9
33   10   to the left of    8
34   10  to the right of   12
35   10               on   14
36   11  to the right of    6
37   11  to the right of   12
38   12   to the left of    2
39   12   to the left of   10
40   12   to the left of    8
41   12   to the left of    6
42   12   to the left of    9
43   12   to the left of   14
44   12   to the left of   13
45   12   to the left of   11
46   13  to the right of    6
47   13  to the right of   12
48   14               on   15
49   14  to the right of   12