What is the color of the ball to the left of the player?
The ball is yellow.
    src        edge_attr  dst
0     0  to the right of    6
1     1   to the left of    4
2     1   to the left of    8
3     2   to the left of    8
4     2   to the left of    4
5     3   to the left of    4
6     4          wearing    0
7     4          wearing    5
8     4          holding    1
9     4  to the right of    2
10    4  to the right of    1
11    4          wearing    8
12    4  to the right of    6
13    4  to the right of    3
14    6   to the left of    4
15    6   to the left of    0
16    8  to the right of    2
17    8  to the right of    1