Is the floor black or cream colored?
The floor is black.
    src        edge_attr  dst
0     1   to the left of    7
1     2   to the left of    8
2     3   to the left of    8
3     7   to the left of    8
4     7  to the right of    1
5     8  to the right of    2
6     8  to the right of    7
7     8  to the right of    3
8     8  to the right of   12
9     9               on    0
10   10   to the left of   12
11   12   to the left of    8
12   12  to the right of   10