What animal is pulling the cart?
The horse is pulling a cart.
    src        edge_attr  dst
0     0   to the left of   11
1     1  to the right of   14
2     1  to the right of   12
3     1  to the right of   17
4     1  to the right of    9
5     1  to the right of   11
6     1          pulling   12
7     2   to the left of    6
8     2  to the right of   11
9     2   to the left of    5
10    2   to the left of    3
11    2  to the right of   14
12    2  to the right of    9
13    3  to the right of    2
14    3   to the left of    6
15    3   to the left of    5
16    3  to the right of    4
17    4  to the right of   11
18    4   to the left of    5
19    4   to the left of    3
20    4   to the left of    6
21    5  to the right of    6
22    5  to the right of    2
23    5  to the right of    3
24    5  to the right of    4
25    5  to the right of   12
26    6  to the right of   12
27    6  to the right of    3
28    6  to the right of    2
29    6   to the left of    5
30    6  to the right of    4
31    8   to the left of   15
32    9   to the left of    2
33    9   to the left of    1
34   11   to the left of    2
35   11   to the left of    4
36   11   to the left of    1
37   11  to the right of    0
38   12        pulled by    1
39   12   to the left of    6
40   12   to the left of    5
41   12   to the left of    1
42   14          wearing   17
43   14          wearing   13
44   14   to the left of    1
45   14   to the left of    2
46   14               in   12
47   14          driving    1
48   15  to the right of    8
49   17   to the left of    1