Is the grass tan or green?
The grass is green.
   src        edge_attr  dst
0    3   to the left of   17
1    8  to the right of   14
2    9   to the left of   16
3   10  to the right of   14
4   14           behind   15
5   14   to the left of   10
6   14   to the left of    8
7   15      in front of   14
8   16  to the right of    9
9   17  to the right of    3