How tall is the brown grass?
The grass is tall.
    src        edge_attr  dst
0     0   to the left of    6
1     1   to the left of    4
2     1   to the left of    5
3     2           behind    9
4     2             near    9
5     4  to the right of    1
6     5  to the right of    1
7     6   to the left of   12
8     6  to the right of    0
9     7   to the left of   12
10    8           behind    9
11    9             near    2
12    9      in front of    2
13    9      in front of    8
14   10               on    3
15   12               on    9
16   12  to the right of    6
17   12  to the right of    7