Are there any balls that are not purple?
Yes, there is a white ball.
     src        edge_attr  dst
0      0   to the left of   28
1      0  to the right of   34
2      0   to the left of   35
3      0   to the left of   38
4      0   to the left of   25
..   ...              ...  ...
268   40  to the right of   35
269   40   to the left of   31
270   40  to the right of   29
271   40  to the right of   38
272   40   to the left of   15

[273 rows x 3 columns]