Is the floor black or white?
The floor is white.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   13
2     0  to the right of   17
3     0  to the right of    8
4     0  to the right of    4
..  ...              ...  ...
64   17   to the left of    0
65   17  to the right of    1
66   17  to the right of    2
67   18               on   17
68   18  to the right of   12

[69 rows x 3 columns]