Do you see any smoke or steam that are not white?
No, there is smoke but it is white.
   src        edge_attr  dst
0    0  to the right of    2
1    1  to the right of    2
2    2   to the left of    4
3    2   to the left of    3
4    2   to the left of    5
5    2   to the left of    1
6    2   to the left of    0
7    3  to the right of    2
8    4  to the right of    2
9    5  to the right of    2