Are there both snow and grass in the picture?
Yes, there are both grass and snow.
   src        edge_attr  dst
0    5  to the right of    6
1    6   to the left of    5
2    8               on   10
3    8   to the left of   11
4    9   to the left of   14
5   10               on    9
6   11  to the right of    8
7   14       grazing on   15
8   14  to the right of    9