What color does the pillow on top of the other pillow have?
The pillow has white color.
    src        edge_attr  dst
0     0   to the left of    2
1     1   to the left of    2
2     1   to the left of    3
3     1               of    0
4     2               on    4
5     2  to the right of    0
6     2  to the right of    1
7     2  to the right of    9
8     2  to the right of    3
9     3   to the left of    2
10    3  to the right of    1
11    3  to the right of    9
12    4  to the right of   13
13    5               on    4
14    7  to the right of    8
15    7   to the left of   15
16    7   to the left of   14
17    7  to the right of   13
18    7               on    4
19    7               at   10
20    8   to the left of   17
21    8               on    0
22    8   to the left of   10
23    8   to the left of    7
24    9               of    0
25    9   to the left of    2
26    9   to the left of    3
27    9   to the left of   16
28   10  to the right of   17
29   10  to the right of    8
30   10  to the right of   13
31   13   to the left of    4
32   13   to the left of    7
33   13               on    0
34   13   to the left of   17
35   13   to the left of   10
36   14               on    4
37   14               at   10
38   14  to the right of    7
39   15               at   10
40   15        on top of   14
41   15               on    4
42   15               on   14
43   15        on top of    7
44   15  to the right of    7
45   16               of   17
46   16               on   17
47   16  to the right of    9
48   17  to the right of   13
49   17   to the left of   10
50   17  to the right of    8