What type of animal is this fence in front of?
The fence is in front of the giraffes.
    src        edge_attr  dst
0     0          next to    2
1     0      in front of    2
2     0             near    2
3     1   to the left of    4
4     2            above   10
5     2            below    6
6     2               in    9
7     2             near    0
8     2  to the right of    8
9     2  to the right of    7
10    2            under    6
11    2           inside    0
12    2           behind    0
13    2  to the right of    3
14    3   to the left of    2
15    4  to the right of    1
16    4  to the right of   13
17    4  to the right of   11
18    5  to the right of   11
19    6            above    2
20    7   to the left of    2
21    8   to the left of    2
22   11   to the left of    4
23   11   to the left of    5
24   13   to the left of    4