What is the ball made of?
The ball is made of plastic.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    3
2     0   to the left of   11
3     1               on    0
4     3      in front of    4
5     3          wearing    7
6     3          hitting    5
7     3         swinging    2
8     3          wearing   10
9     3      in front of    9
10    3  to the right of    5
11    3  to the right of    0
12    3  to the right of    9
13    3             near    8
14    3          wearing   11
15    3          holding    2
16    3  to the right of    6
17    4           behind    3
18    5   to the left of   10
19    5   to the left of    3
20    6  to the right of    8
21    6   to the left of    3
22    6   to the left of   10
23    7  to the right of    0
24    8           beside    3
25    8             near    3
26    8   to the left of    6
27    8   to the left of   12
28    9   to the left of    3
29    9   to the left of   10
30    9           behind    3
31   10  to the right of    5
32   10  to the right of    6
33   10  to the right of    9
34   11  to the right of    0
35   12  to the right of    8