Is the river green and calm?
Yes, the river is green and calm.
    src        edge_attr  dst
0     0      standing on    6
1     0   to the left of    8
2     0      standing in    6
3     0  to the right of    2
4     0  to the right of   11
5     1   to the left of    8
6     1   to the left of    7
7     1           moving    6
8     1          wearing   11
9     2   to the left of    3
10    2   to the left of    0
11    2   to the left of    8
12    2   to the left of    7
13    3   to the left of    8
14    3  to the right of    2
15    3  to the right of   11
16    4   to the left of    6
17    6               on    5
18    6  to the right of    4
19    7  to the right of   11
20    7  to the right of    1
21    7       sitting in    6
22    7  to the right of    2
23    8  to the right of   11
24    8  to the right of    2
25    8  to the right of    3
26    8  to the right of    0
27    8  to the right of    1
28   11   to the left of    7
29   11   to the left of    0
30   11   to the left of    3
31   11   to the left of    8