What is the grass in front of?
The grass is in front of the trees.
    src        edge_attr  dst
0     0            below    1
1     1      in front of    2
2     1            above    3
3     1          next to    7
4     1            above    0
5     1             near    7
6     1      in front of    7
7     1   to the left of    5
8     1      in front of    8
9     2           behind    1
10    2           behind    7
11    3            below    1
12    3   to the left of    5
13    3            under    1
14    4   to the left of    8
15    5  to the right of    3
16    5  to the right of    1
17    7      in front of    2
18    7          next to    1
19    7          next to    8
20    7             near    1
21    7           behind    1
22    7             near    8
23    8             near    7
24    8  to the right of    4