What color is the floor?
The floor is black.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    5
2     1           behind    2
3     1   to the left of    7
4     1  to the right of    6
5     2      in front of    1
6     2  to the right of    0
7     2   to the left of    7
8     5  to the right of    0
9     6   on the side of    4
10    6   to the left of    1
11    6       going down    4
12    6     connected to    4
13    7  to the right of    2
14    7  to the right of    1
15    7        on top of    3