What's the sink filled with?
The sink is filled with trash.
    src        edge_attr  dst
0     0   to the left of    5
1     0   to the left of    9
2     0   to the left of    4
3     0   to the left of   12
4     1   to the left of    4
..  ...              ...  ...
64   16   to the left of    4
65   16      filled with    1
66   17  to the right of    7
67   17   to the left of   11
68   17  to the right of    2

[69 rows x 3 columns]