What is the zebra that is walking walking towards?
The zebra is walking towards the fence.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of   15
2     1           behind    2
3     1   to the left of    2
4     2      in front of    7
5     2      in front of    1
6     2  to the right of    6
7     2  to the right of    4
8     2  to the right of    1
9     2  to the right of   12
10    3   to the left of   10
11    4  to the right of    0
12    4   to the left of    2
13    5  to the right of   13
14    6   to the left of    2
15    7           behind    2
16    7   to the left of   10
17    7  walking towards    2
18    9   to the left of   10
19   10  to the right of   16
20   10  to the right of   14
21   10  to the right of    3
22   10  to the right of    9
23   10  to the right of    7
24   10  to the right of   13
25   12   to the left of    2
26   13   to the left of   14
27   13   to the left of   10
28   13   to the left of    5
29   14   to the left of   10
30   14  to the right of   13
31   15  to the right of    0
32   16   to the left of   10