Which kind of animal is the grass behind of?
The grass is behind the bear.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of    1
2     0   to the left of    9
3     0   to the left of    5
4     1  to the right of    7
5     1  to the right of    6
6     1  to the right of    4
7     1  to the right of   11
8     1  to the right of    0
9     1  to the right of    9
10    1  to the right of    2
11    2   to the left of    1
12    2  to the right of    3
13    2   to the left of    4
14    3   to the left of    6
15    3   to the left of    5
16    3           behind    6
17    3          beneath    6
18    3   to the left of    2
19    3   to the left of   10
20    3   on the side of    0
21    3               on    0
22    4   to the left of    1
23    4  to the right of    2
24    4  to the right of    6
25    4  to the right of    8
26    4  to the right of    9
27    4  to the right of   10
28    4  to the right of    0
29    5  to the right of    6
30    5  to the right of    3
31    5             near    6
32    5  to the right of   11
33    5  to the right of   10
34    5  to the right of    8
35    5  to the right of    0
36    6      in front of    3
37    6          next to    5
38    6            above    3
39    6       walking on   11
40    6  to the right of    3
41    6   to the left of    5
42    6   to the left of    4
43    6   to the left of    1
44    6  walking through   11
45    7   to the left of    1
46    8   to the left of    5
47    8   to the left of    4
48    9  to the right of    0
49    9   to the left of    1
50    9   to the left of    4
51   10  to the right of    3
52   10   to the left of    4
53   10   to the left of    5
54   11   to the left of    1
55   11   to the left of    5
56   11               on    0