What is the horse doing?
The horse is walking.
    src        edge_attr  dst
0     0   to the left of    6
1     1   to the left of    6
2     1               on    8
3     1  to the right of   15
4     2  to the right of    6
5     2  to the right of    4
6     2   to the left of    3
7     3  to the right of    2
8     3  to the right of    5
9     3  to the right of    4
10    4   to the left of    3
11    4   to the left of    2
12    4  to the right of    6
13    4   to the left of    5
14    5   to the left of    3
15    5  to the right of    4
16    6   to the left of    2
17    6   to the left of    4
18    6  to the right of    1
19    6  to the right of   15
20    6  to the right of    0
21    7  to the right of   16
22    8               on   13
23   13               on   13
24   13               by    5
25   14   to the left of   15
26   15               by    3
27   15  to the right of   14
28   15   to the left of    6
29   15   to the left of    1
30   16   to the left of    7
31   16               in   10