Of which color is the light carpet?
The carpet is gray.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of    4
2     0  to the right of   12
3     0  to the right of    7
4     1   to the left of   13
5     1   to the left of    7
6     1   to the left of    5
7     2               on    7
8     2   to the left of    0
9     2   to the left of    8
10    2   to the left of    3
11    3  to the right of    7
12    3  to the right of    5
13    3  to the right of   12
14    3  to the right of   13
15    3  to the right of    4
16    3  to the right of    2
17    3             near   11
18    4   to the left of    3
19    4   to the left of    0
20    4  to the right of   12
21    5  to the right of    1
22    5   to the left of    8
23    5   to the left of    3
24    6  to the right of   10
25    6               on   10
26    7   to the left of    3
27    7   to the left of    0
28    7  to the right of    1
29    8  to the right of    5
30    8  to the right of    2
31    8  to the right of   12
32   10   to the left of    6
33   11             near    3
34   11  to the right of   12
35   12   to the left of    4
36   12   to the left of    8
37   12   to the left of    3
38   12   to the left of    0
39   12   to the left of   11
40   13   to the left of    3
41   13  to the right of    1