What color is the floor?
The floor is gray.
    src        edge_attr  dst
0     0  to the right of   14
1     2   to the left of    5
2     3   to the left of   13
3     3   to the left of    7
4     3  to the right of   14
5     4   to the left of   12
6     4  to the right of    7
7     4   to the left of    9
8     5  to the right of    2
9     7  to the right of    3
10    7   to the left of    4
11    7  to the right of   16
12    7  to the right of   14
13    7   to the left of   13
14    8  to the right of   10
15    9  to the right of   13
16    9  to the right of   12
17    9  to the right of    4
18   10   to the left of    8
19   10   to the left of   11
20   11               in    8
21   11  to the right of   10
22   12   to the left of    9
23   12               on   15
24   12  to the right of   13
25   12  to the right of    4
26   13  to the right of    3
27   13   to the left of    9
28   13  to the right of   16
29   13  to the right of    7
30   13   to the left of   12
31   14   to the left of    7
32   14   to the left of    0
33   14   to the left of    3
34   14   to the left of   15
35   14   to the left of   16
36   15  to the right of   14
37   16   to the left of   13
38   16   to the left of    7
39   16  to the right of   14