Which color do you think the pillow is?
The pillow is red.
    src        edge_attr  dst
0     0        on top of    1
1     1   to the left of    8
2     1   to the left of    7
3     1   to the left of    9
4     2        on top of    3
5     2   to the left of    9
6     2   to the left of    7
7     7        on top of    3
8     7  to the right of    2
9     7               in    9
10    7  to the right of    1
11    7  to the right of    8
12    8   to the left of    7
13    8  to the right of    1
14    9  to the right of    1
15    9  to the right of    2