How's the weather?
It is clear.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of    0
2     1  to the right of    5
3     2   to the left of    5
4     3  to the right of    5
5     5   to the left of    6
6     5   to the left of    1
7     5   to the left of    3
8     5  to the right of    2
9     6  to the right of    5
10    7               on    9