How is the weather?
It is foggy.
   src        edge_attr  dst
0    0   to the left of   11
1    2   to the left of    6
2    2   to the left of    3
3    2   to the left of    5
4    2   to the left of   10
5    3  to the right of    2
6    5  to the right of    2
7    6  to the right of    2
8   10  to the right of    2
9   11  to the right of    0