Which kind of animal crosses the water?
The animal is an elephant.
    src        edge_attr  dst
0     0   to the left of    7
1     1         crossing    8
2     1  to the right of    7
3     1   to the left of   11
4     2          wearing    3
5     2   to the left of   10
6     2  to the right of   14
7     2   to the left of    9
8     3   to the left of   10
9     3   to the left of    9
10    3  to the right of   14
11    4               on    0
12    4   to the left of    7
13    4       sitting on    0
14    6  to the right of   12
15    6            below   13
16    7  to the right of    0
17    7             near    8
18    7   to the left of    1
19    7  to the right of    4
20    7   to the left of   11
21    8             near    7
22    9  to the right of    2
23    9       sitting on   11
24    9  to the right of   14
25    9  to the right of    3
26   10  to the right of    3
27   10  to the right of    2
28   10  to the right of   14
29   11               in    8
30   11         crossing    8
31   11  to the right of    7
32   11  to the right of    1
33   12   to the left of    6
34   14               on    1
35   14       sitting on    1
36   14           riding    1
37   14   to the left of    2
38   14   to the left of    3
39   14   to the left of    9
40   14   to the left of   10
41   16          wearing   15