How large are the white clouds?
The clouds are large.
   src        edge_attr  dst
0    0   to the left of    4
1    0               in    1
2    2  to the right of    3
3    3               in    1
4    3   to the left of    2
5    4        flying in    1
6    4  to the right of    0
7    4               in    1