Are there any flags or helmets?
Yes, there is a flag.
    src        edge_attr  dst
0     0  to the right of    7
1     0   to the left of   18
2     1               by   15
3     1   to the left of    4
4     3  to the right of    5
5     3  to the right of   15
6     3  to the right of   20
7     4   to the left of    5
8     4  to the right of    1
9     4   to the left of    8
10    4  to the right of   13
11    4   to the left of   10
12    5   to the left of   14
13    5  to the right of    4
14    5   to the left of   19
15    5   to the left of    3
16    6  to the right of   14
17    6   to the left of   12
18    7   to the left of    0
19    8   to the left of   14
20    8  to the right of    4
21   10  to the right of    4
22   10   to the left of   14
23   12               on    6
24   12  to the right of    6
25   13   to the left of    4
26   14  to the right of    8
27   14  to the right of    5
28   14   to the left of    6
29   14  to the right of   10
30   15   to the left of   19
31   15   to the left of    3
32   18  to the right of    0
33   19  to the right of    5
34   19  to the right of   15
35   19  to the right of   20
36   20   to the left of    3
37   20   to the left of   19