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