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