What is the water in front of?
The water is in front of the mountain.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    5
2     0   to the left of   10
3     1   to the left of   10
4     1      coming from    0
5     3      in front of    9
6     5  to the right of    0
7     6   to the left of   10
8     7  to the right of    0
9    10  to the right of    0
10   10  to the right of    1
11   10  to the right of    6