Is this a horse or a zebra?
This is a zebra.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of    2
2     0               of    9
3     0  to the right of   14
4     1  to the right of    5
5     1   to the left of    4
6     1   to the left of   11
7     1               of    9
8     2               in    8
9     2   to the left of    0
10    2   to the left of    9
11    2   to the left of    4
12    2   to the left of   11
13    3               of    9
14    3  to the right of    0
15    4  to the right of    1
16    4  to the right of    2
17    4  to the right of   14
18    4   to the left of   11
19    5               of    2
20    5   to the left of    1
21    5   to the left of    9
22    5   to the left of   14
23    6  to the right of    7
24    6   to the left of    9
25    6               of    2
26    6   to the left of   14
27    7               of    2
28    7   to the left of    6
29    9  to the right of    2
30    9  to the right of   14
31    9  to the right of   10
32    9  to the right of    6
33    9  to the right of    5
34    9               in    8
35   10   to the left of   14
36   10   to the left of    9
37   10               of    2
38   11  to the right of    2
39   11  to the right of    4
40   11  to the right of    1
41   11               of    9
42   11  to the right of   14
43   12               of    9
44   13               of    2
45   13   to the left of   14
46   14               of    2
47   14   to the left of    0
48   14   to the left of    4
49   14  to the right of    5
50   14  to the right of    6
51   14  to the right of   10
52   14   to the left of    9
53   14  to the right of   13
54   14   to the left of   11