Is this a zebra or a cow?
This is a zebra.
    src        edge_attr  dst
0     0   to the left of    5
1     1   to the left of   15
2     1   to the left of   11
3     1   to the left of   16
4     1   to the left of    8
5     1   to the left of    9
6     1   to the left of    7
7     2  to the right of    9
8     2  to the right of   15
9     3   to the left of   15
10    3   to the left of   11
11    3           behind   10
12    5  to the right of   15
13    5  to the right of    0
14    6  to the right of   15
15    7   to the left of   13
16    7  to the right of    1
17    8  to the right of    1
18    9  to the right of    1
19    9   to the left of    2
20   10   to the left of   15
21   10   to the left of   11
22   11  to the right of    1
23   11      in front of   13
24   11  to the right of    3
25   11  to the right of   10
26   11  to the right of   12
27   12   to the left of   11
28   12   to the left of   16
29   12   to the left of   15
30   13           behind   11
31   13  to the right of    7
32   15  to the right of   10
33   15  to the right of   12
34   15  to the right of    3
35   15   to the left of    2
36   15  to the right of    1
37   15   to the left of    5
38   15   to the left of    6
39   16  to the right of    1
40   16  to the right of   12