What is the roof full of?
The roof is full of snow.
    src        edge_attr  dst
0     0  to the right of    9
1     1   to the left of   18
2     1               on   12
3     1   to the left of   11
4     2          wearing    8
..  ...              ...  ...
72   23  to the right of    9
73   23  to the right of    7
74   23   to the left of    2
75   23   to the left of    4
76   23   to the left of   14

[77 rows x 3 columns]