The ball is where?
The ball is on the grass.
    src        edge_attr  dst
0     0           behind   10
1     0       sitting on    6
2     0               on    6
3     1  to the right of   12
4     2               on    9
5     2  to the right of    8
6     3  to the right of   12
7     5  to the right of   12
8     7  to the right of   12
9     8   to the left of    9
10    8   to the left of    2
11    9      in front of   10
12    9               on    6
13    9  to the right of    8
14   10          wearing    5
15   10      in front of    0
16   10           behind    9
17   10  to the right of   12
18   10       picking up    9
19   10          wearing    1
20   12   to the left of   10
21   12   to the left of    7
22   12   to the left of    1
23   12   to the left of    5
24   12   to the left of    3