Is there a fence or a tennis ball in the photo?
Yes, there is a fence.
    src        edge_attr  dst
0     0  to the right of   18
1     1   to the left of   17
2     1   to the left of   16
3     1   to the left of   23
4     2   to the left of   23
5     4  to the right of   23
6     4  to the right of   17
7     4  to the right of   11
8     5               on    4
9     5  to the right of   11
10    5       sitting on    4
11    5  to the right of   23
12    5  to the right of   17
13    8  to the right of   18
14   10  to the right of   18
15   11   to the left of    5
16   11   to the left of    4
17   16  to the right of    1
18   17   to the left of    5
19   17  to the right of   18
20   17  to the right of    1
21   17   to the left of    4
22   18   to the left of    8
23   18   to the left of    0
24   18   to the left of   17
25   18   to the left of   23
26   18   to the left of   10
27   23          wearing    0
28   23  to the right of    1
29   23          wearing   17
30   23  to the right of    2
31   23   to the left of    5
32   23   to the left of    4
33   23  to the right of   18
34   23          wearing   14
35   23          wearing   20