Does that grass look green or brown?
The grass is brown.
   src        edge_attr  dst
0    0  to the right of   13
1    0  to the right of    9
2    2               in   12
3    4  to the right of   10
4    8               on   11
5    9   to the left of    0
6   10   to the left of    4
7   13   to the left of    0