The flags that are on the right are of which color?
The flags are blue.
    src        edge_attr  dst
0     0  to the right of   12
1     2   to the left of    4
2     2  to the right of    9
3     2   to the left of    6
4     4   to the left of   14
5     4   to the left of   15
6     4  to the right of    2
7     4   to the left of    6
8     4  to the right of    5
9     4      in front of   11
10    4  to the right of    9
11    4   to the left of    7
12    5               on    8
13    5   to the left of    6
14    5  to the right of    9
15    5      in front of   11
16    5   to the left of    4
17    6  to the right of    5
18    6  to the right of   11
19    6  to the right of    4
20    6  to the right of    2
21    7  to the right of    4
22    7  to the right of   11
23    9   to the left of    2
24    9  to the right of   12
25    9   to the left of    4
26    9   to the left of    5
27   10   to the left of   13
28   11   to the left of    6
29   11           behind    5
30   11           behind    4
31   11   to the left of   15
32   11   to the left of   14
33   11   to the left of    7
34   12   to the left of    9
35   12   to the left of    0
36   13  to the right of   10
37   14  to the right of   15
38   14  to the right of    4
39   14  to the right of   11
40   15  to the right of    4
41   15   to the left of   14
42   15  to the right of   11