On which side of the picture is the green flag?
The flag is on the left of the image.
    src        edge_attr  dst
0     0  to the right of   13
1     1   to the left of    3
2     2   to the left of   16
3     3  to the right of    7
4     3  to the right of   15
5     3  to the right of    1
6     3  to the right of    4
7     4   to the left of   15
8     4   to the left of   12
9     4   to the left of    6
10    4   to the left of    3
11    4   to the left of    7
12    5  to the right of   13
13    5  to the right of   14
14    5               on   17
15    5      standing on   17
16    6  to the right of    4
17    7  to the right of    4
18    7   to the left of    3
19    8      standing on   17
20    8               on   17
21    8   to the left of   16
22   10               on    7
23   10  to the right of   14
24   11   to the left of   16
25   12  to the right of    4
26   13   to the left of   16
27   13   to the left of    5
28   13   to the left of   17
29   13   to the left of    0
30   14   to the left of   10
31   14   to the left of   17
32   14   to the left of    5
33   15   to the left of    3
34   15  to the right of    4
35   16  to the right of   11
36   16  to the right of    8
37   16  to the right of    2
38   16  to the right of   13
39   17  to the right of   14
40   17  to the right of   13
41   19               on   13