Do the horns look curled?
Yes, the horns are curled.
    src        edge_attr  dst
0     0   to the left of   13
1     0  to the right of    5
2     0   to the left of    3
3     0   to the left of   11
4     0   to the left of   16
5     0   to the left of   10
6     1   to the left of   11
7     1   to the left of    3
8     1   to the left of   13
9     1   to the left of    6
10    1   to the left of    4
11    1  to the right of    9
12    1  to the right of    8
13    1   to the left of   16
14    1   to the left of   10
15    3   to the left of   13
16    3  to the right of    0
17    3  to the right of    1
18    4  to the right of    1
19    5   to the left of    0
20    6  to the right of    1
21    8   to the left of    1
22    8   to the left of   15
23    8   to the left of   14
24    9   to the left of   12
25    9   to the left of    1
26   10  to the right of    1
27   10  to the right of    0
28   11  to the right of    1
29   11  to the right of    0
30   11   to the left of   13
31   12  to the right of    9
32   13  to the right of   11
33   13  to the right of    0
34   13  to the right of    1
35   13  to the right of    3
36   14  to the right of    8
37   14   to the left of   15
38   15  to the right of    8
39   15  to the right of   14
40   16               on    2
41   16  to the right of    0
42   16  to the right of    1