Are there both mud and grass in this picture?
Yes, there are both mud and grass.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    1
2     0   to the left of    7
3     1  to the right of    7
4     1  to the right of    0
5     2  to the right of    0
6     2   to the left of    5
7     2   to the left of    4
8     2   to the left of   14
9     2  to the right of    7
10    3               on   10
11    4   to the left of   12
12    4  to the right of    2
13    5   to the left of   12
14    5  to the right of    2
15    7               on   10
16    7   to the left of    1
17    7  to the right of    0
18    7   to the left of    2
19    8               on   12
20   12  to the right of    5
21   12  to the right of    4
22   14  to the right of    2