Does the fog look snowy?
Yes, the fog is snowy.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of   12
2     0  to the right of   15
3     1  to the right of   15
4     1  to the right of   12
5     2  to the right of    4
6     2  to the right of   14
7     2  to the right of   12
8     2  to the right of   15
9     4  to the right of   12
10    4  to the right of   15
11    4   to the left of    2
12    5  to the right of   12
13    5  to the right of   15
14    6   to the left of    0
15    6   to the left of   10
16    6   to the left of   16
17    6   to the left of   11
18    7   to the left of   15
19    7   to the left of   12
20    8   to the left of   12
21    8   to the left of   15
22    9         carrying   16
23   10  to the right of   12
24   10  to the right of    6
25   10  to the right of   15
26   11  to the right of    6
27   11  to the right of   15
28   12  to the right of   15
29   12   to the left of   17
30   12  to the right of    7
31   12   to the left of   10
32   12   to the left of    1
33   12   to the left of    0
34   12  to the right of    8
35   12   to the left of    5
36   12   to the left of    4
37   12   to the left of    2
38   12   to the left of   14
39   14  to the right of   12
40   14  to the right of   15
41   14   to the left of    2
42   15   to the left of   14
43   15   to the left of   17
44   15   to the left of   10
45   15  to the right of    8
46   15  to the right of    7
47   15   to the left of   12
48   15   to the left of    2
49   15   to the left of    1
50   15   to the left of    5
51   15   to the left of    4
52   15   to the left of    0
53   15   to the left of   11
54   16  to the right of   17
55   16  to the right of    6
56   17   to the left of   16
57   17  to the right of   12
58   17  to the right of   15