How tall do you think is the grass?
The grass is tall.
    src        edge_attr  dst
0     0             near    4
1     0             near    2
2     0      in front of    4
3     2             near    4
4     2               in    3
5     2             near    0
6     2      in front of    4
7     2   to the left of    8
8     2   to the left of    9
9     2               on    3
10    2   to the left of   11
11    4           behind    2
12    4      in front of    5
13    4             near    2
14    4           behind    0
15    4             near    0
16    5           behind    4
17    6  to the right of    8
18    7               in    3
19    8  to the right of    2
20    8   to the left of    6
21    8   to the left of    9
22    9  to the right of   11
23    9  to the right of    8
24    9  to the right of    2
25   11   to the left of    9
26   11  to the right of    2
27   11   to the left of   12
28   12  to the right of   11