Do you see either an ostrich or a zebra in the picture?
Yes, there is a zebra.
    src        edge_attr  dst
0     1   to the left of    8
1     1  to the right of   12
2     1  to the right of   14
3     1   to the left of   15
4     2  to the right of   14
5     2   to the left of   15
6     2   to the left of    8
7     2  to the right of   12
8     3  to the right of   15
9     3  to the right of    8
10    4   to the left of    5
11    5   to the left of    6
12    5  to the right of    4
13    6   to the left of    7
14    6  to the right of    5
15    7  to the right of    6
16    7   to the left of   16
17    8  to the right of    1
18    8   to the left of    3
19    8  to the right of   11
20    8  to the right of   17
21    8   to the left of   15
22    8  to the right of    2
23    8  to the right of   14
24   11   to the left of   15
25   11  to the right of   12
26   11   to the left of    8
27   12   to the left of   14
28   12   to the left of    1
29   12   to the left of   11
30   12   to the left of    2
31   14  to the right of   12
32   14   to the left of    8
33   14   to the left of    1
34   14   to the left of   17
35   14   to the left of    2
36   15  to the right of    2
37   15   to the left of    3
38   15  to the right of    1
39   15  to the right of   17
40   15  to the right of   11
41   15  to the right of    8
42   16  to the right of    7
43   17  to the right of   14
44   17   to the left of   15
45   17   to the left of    8