What's the zebra in front of?
The zebra is in front of the post.
    src        edge_attr  dst
0     0          next to    5
1     0             near    5
2     0           eating    1
3     0           eating   18
4     0          between   17
5     0  to the right of   14
6     0  to the right of   10
7     0      in front of    3
8     1        on top of    5
9     2               of    0
10    2   to the left of   12
11    3           behind    0
12    5               by   18
13    5             near    0
14    8               of    0
15    9  to the right of   11
16    9   to the left of   12
17    9   to the left of   19
18    9               of    0
19   10   to the left of   13
20   10   to the left of    0
21   10             near   12
22   11               on   12
23   11   to the left of    9
24   12             near   10
25   12  to the right of    2
26   12  to the right of    9
27   13               of    0
28   13  to the right of   10
29   14   to the left of    0
30   15               of    0
31   16               of    0
32   19               of    0
33   19  to the right of    9