Is the floor brown or green?
The floor is brown.
    src        edge_attr  dst
0     0             near    6
1     0   to the left of    2
2     0   to the left of    6
3     1               on    6
4     1        on top of    6
5     1   to the left of    7
6     2         lying on    3
7     2               on    3
8     2  to the right of    0
9     2   to the left of    6
10    4          next to    6
11    4             near    6
12    6               in    5
13    6             near    4
14    6             near    0
15    6  to the right of    2
16    6  to the right of    0
17    7  to the right of    1
18    7      standing in    5
19    7               in    5
20    8               on    0
21    8       sitting on    0