What color is the grass?
The grass is green.
    src        edge_attr  dst
0     0  to the right of    5
1     1  to the right of   12
2     2           behind   12
3     2  to the right of    4
4     2   to the left of    5
5     4   to the left of    2
6     5   to the left of    0
7     5   to the left of   10
8     5   to the left of    6
9     5  to the right of    2
10    5   to the left of    8
11    5   to the left of    7
12    6  to the right of    5
13    7  to the right of    5
14    7   to the left of    8
15    8  to the right of    5
16    8  to the right of    7
17   10  to the right of    5
18   12   to the left of    1
19   12               in    3