What is the size of that ball?
The ball is large.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of    2
2     1   to the left of    6
3     1  to the right of    3
4     1   to the left of    9
5     1   to the left of    0
6     2   to the left of    8
7     2  to the right of    1
8     2   to the left of    7
9     3   to the left of    1
10    3   to the left of    4
11    4        parked at    3
12    4  to the right of    3
13    6  to the right of    1
14    7  to the right of    2
15    7   on the back of    4
16    7  to the right of    9
17    8  to the right of    2
18    8  to the right of    9
19    9   to the left of    8
20    9  to the right of    1
21    9   to the left of    7