What is the trash can made of?
The trash can is made of concrete.
    src        edge_attr  dst
0     0               on    5
1     0   to the left of   18
2     0   to the left of    9
3     1   to the left of    7
4     1   to the left of   10
..  ...              ...  ...
60   19   to the left of   10
61   19   to the left of   13
62   20  to the right of   10
63   20  to the right of    7
64   20  to the right of    3

[65 rows x 3 columns]