Of what color do you think is the napkin?
The napkin is blue.
    src        edge_attr  dst
0     0   to the left of   13
1     1  to the right of    9
2     2      in front of    9
3     3            below   14
4     3  to the right of    7
5     3               on    6
6     3            under   14
7     4   to the left of   15
8     4   to the left of   17
9     5  to the right of   12
10    5  to the right of   14
11    5  to the right of   13
12    7               on    6
13    7   to the left of    3
14    7   to the left of   11
15    7   to the left of   16
16    7   to the left of   10
17    7   to the left of    8
18    8               on    6
19    8  to the right of    7
20    9           behind    2
21    9   to the left of    1
22   10  to the right of    7
23   10               on    6
24   11  to the right of    7
25   11               on    6
26   12   to the left of    5
27   12               on    6
28   12               in   14
29   13               on    6
30   13   to the left of    5
31   13               in   14
32   13  to the right of    0
33   14               of   12
34   14   to the left of    5
35   14            above    3
36   15               on    6
37   15               in   17
38   15  to the right of    4
39   16  to the right of    7
40   16               on    3
41   17               on    6
42   17               of   15
43   17  to the right of    4