Is the white ball on the right side or on the left of the photo?
The ball is on the left of the image.
    src        edge_attr  dst
0     2  to the right of   13
1     3   to the left of    8
2     4   to the left of   11
3     5   to the left of   10
4     5   to the left of    9
5     5   to the left of   12
6     6   to the left of   11
7     8  to the right of    3
8     9  to the right of   10
9     9  to the right of    5
10    9  to the right of   13
11   10  to the right of    5
12   10   to the left of    9
13   10   to the left of   13
14   11  to the right of    4
15   11  to the right of    6
16   11  to the right of   13
17   12  to the right of    5
18   13   to the left of    2
19   13   to the left of    9
20   13   to the left of   11
21   13  to the right of   10