Is there any white smoke or steam?
No, there is smoke but it is black.
   src        edge_attr  dst
0    0  to the right of    6
1    1  to the right of    4
2    1  to the right of    6
3    1  to the right of    3
4    3   to the left of    1
5    4   to the left of    1
6    6   to the left of    1
7    6          wearing    4
8    6          wearing    3
9    6   to the left of    0