How clean is the ground the child is on?
The ground is clean.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of    1
2     0  to the right of    8
3     1  to the right of    3
4     1             near    4
5     1  to the right of    8
6     1   to the left of    6
7     1  to the right of    0
8     1             near    2
9     2             near    1
10    3   to the left of    1
11    3  to the right of    8
12    3  to the right of    7
13    4               on    5
14    4  to the right of    7
15    4        riding on    5
16    4  to the right of    8
17    4             near    1
18    6  to the right of    1
19    6  to the right of    0
20    7   to the left of    3
21    7   to the left of    4
22    8   to the left of    0
23    8   to the left of    3
24    8   to the left of    4
25    8   to the left of    1