Is there a train on top of the grass?
No, there is a truck on top of the grass.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of    8
2     1  to the right of   11
3     1        on top of    6
4     1             near    3
5     1           behind    3
6     2  on the front of    1
7     2               of    1
8     2   to the left of    7
9     2  to the right of    9
10    3  to the right of    0
11    3             near    1
12    3        on top of    6
13    3      in front of    1
14    5  on the front of    1
15    7   on the side of    1
16    7  to the right of    2
17    8   to the left of    0
18    9   to the left of    2
19    9   on the side of    1
20   10  on the front of    1
21   11   to the left of    1