Are there any balls in the air?
Yes, there is a ball in the air.
    src        edge_attr  dst
0     1   to the left of   13
1     2             with    0
2     3  to the right of   10
3     3  to the right of   11
4     3  to the right of   16
5     3               on    1
6     3               by    1
7     4  to the right of   14
8     5               by    1
9     5  to the right of   11
10    5  to the right of   10
11    5  to the right of    9
12    5               on    1
13    9   to the left of    5
14    9  to the right of   17
15   10   to the left of   11
16   10   to the left of    5
17   10   to the left of    3
18   11   to the left of    3
19   11   to the left of    5
20   11  to the right of   10
21   11               in   10
22   12  to the right of   14
23   13       running in   15
24   13               on    1
25   13   to the left of   16
26   13  to the right of    1
27   14   to the left of    4
28   14   to the left of   12
29   14   to the left of   19
30   16  to the right of   13
31   16   to the left of    3
32   17   to the left of    9
33   17               on    1
34   19  to the right of   14