What animal walks in the grass?
The elephant walks in the grass.
    src        edge_attr  dst
0     1       walking in    0
1     1           beside    4
2     1           behind   10
3     1   to the left of   10
4     1   to the left of    7
5     1  to the right of    2
6     2   to the left of    4
7     2   to the left of    1
8     2   to the left of    6
9     3               on    1
10    3   to the left of    7
11    3   to the left of   10
12    3  to the right of    4
13    4       walking in    0
14    4   to the left of    6
15    4  to the right of    2
16    4   to the left of   10
17    4   to the left of    7
18    4   to the left of    3
19    5  to the right of    8
20    5  to the right of   13
21    5  to the right of   11
22    5           behind   10
23    5  to the right of    9
24    6               on    1
25    6  to the right of    2
26    6  to the right of    4
27    6   to the left of   10
28    7  to the right of    3
29    7  to the right of    1
30    7  to the right of    4
31    8               on    1
32    8          wearing   13
33    8   to the left of   11
34    8   to the left of    5
35    8  to the right of    9
36    9   to the left of   13
37    9   to the left of    8
38    9   to the left of   11
39    9   to the left of    5
40   10      in front of    1
41   10  to the right of    6
42   10      in front of    5
43   10  to the right of    4
44   10  to the right of    1
45   10       looking at    1
46   10          wearing    7
47   10      standing by    1
48   10  to the right of    3
49   11  to the right of    8
50   11               on    1
51   11  to the right of    9
52   11   to the left of    5
53   11  to the right of   13
54   11           riding    1
55   13   to the left of    5
56   13  to the right of    9
57   13   to the left of   11