What color is the floor that the dog is lying on?
The floor is gray.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    2
2     1  to the right of    3
3     1            under    8
4     1  to the right of    5
5     1            below    8
6     2   to the left of    0
7     2  to the right of    9
8     3   to the left of    1
9     5   to the left of    1
10    6   to the left of    8
11    7  to the right of    9
12    7         lying on    4
13    7   to the left of    8
14    8       sitting on    4
15    8            above    1
16    8  to the right of    7
17    8  to the right of    6
18    9   to the left of    0
19    9   to the left of    2
20    9   to the left of    7