What are the animals that are standing in the calm water?
The animals are elephants.
    src        edge_attr  dst
0     0      standing in    3
1     1  to the right of    2
2     2  to the right of    8
3     2  to the right of    6
4     2   to the left of    1
5     2  to the right of    5
6     2  to the right of    4
7     3            above    7
8     4           inside    3
9     4      standing in    3
10    4   to the left of    2
11    4        hidden by    3
12    5   to the left of    2
13    5               of    4
14    5   to the left of    7
15    6   to the left of    7
16    6  to the right of    9
17    6  to the right of    8
18    6   to the left of    2
19    6               of    4
20    7               of    4
21    7  to the right of    5
22    7  to the right of    6
23    8               of    4
24    8   to the left of    6
25    8   to the left of    2
26    8  to the right of    9
27    9   to the left of    6
28    9   to the left of    8
29    9               of    4