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