Is the sheet blue or cream colored?
The sheet is cream colored.
    src        edge_attr  dst
0     2  to the right of   15
1     2         covering    3
2     3  to the right of   13
3     3       covered by    2
4     3  to the right of   15
5     5  to the right of   12
6     5               on   16
7     5  to the right of    6
8     6   to the left of    5
9     6               on   16
10    6  to the right of   12
11    7           beside    3
12    7  to the right of    8
13    7  to the right of   11
14    7               on   14
15    8  to the right of    9
16    8  to the right of   13
17    8   to the left of    7
18    9   to the left of    8
19    9           beside    3
20    9  to the right of   13
21    9   to the left of   10
22    9               on   17
23   10               on    3
24   10  to the right of   13
25   10   to the left of   11
26   10  to the right of    9
27   11   to the left of    7
28   11  to the right of   10
29   12               on   16
30   12   to the left of    5
31   12   to the left of    6
32   13   to the left of    9
33   13               on   17
34   13   to the left of    8
35   13   to the left of    3
36   13   to the left of   10
37   15   to the left of    3
38   15   to the left of    2
39   17               on    4
40   17           beside    3