What is covered in fog?
The trees are covered in fog.
     src        edge_attr  dst
0      0  to the right of   17
1      0  to the right of   15
2      0  to the right of   24
3      0  to the right of   20
4      1  to the right of    8
..   ...              ...  ...
101   26  to the right of   14
102   26  to the right of   16
103   26  to the right of   19
104   26  to the right of   21
105   26  to the right of   24

[106 rows x 3 columns]