What animal is walking in the zoo that is shown in this image?
The elephant is walking in the zoo.
    src        edge_attr  dst
0     0  to the right of    5
1     0  to the right of    2
2     0  to the right of   12
3     0  to the right of   14
4     0  to the right of   13
5     2   to the left of    0
6     2  to the right of   16
7     3  to the right of    9
8     3       walking in    1
9     3  to the right of   16
10    5  to the right of   15
11    5   to the left of    0
12    7   to the left of   10
13    9  to the right of   15
14    9   to the left of   12
15    9   to the left of   13
16    9   to the left of    3
17   10  to the right of    7
18   10  to the right of   16
19   11  to the right of   12
20   11  to the right of   16
21   11  to the right of   13
22   12  to the right of   16
23   12  to the right of    9
24   12   to the left of    0
25   12   to the left of   13
26   12   to the left of   11
27   13  to the right of   16
28   13   to the left of   11
29   13   to the left of    0
30   13  to the right of   12
31   13  to the right of    9
32   14   to the left of    0
33   15   to the left of    5
34   15   to the left of    9
35   16   to the left of   12
36   16   to the left of    2
37   16   to the left of    3
38   16   to the left of   10
39   16   to the left of   11
40   16   to the left of   13
41   16       walking in    1