Is that curtain blue or pink?
The curtain is blue.
    src        edge_attr  dst
0     0   to the left of    6
1     0  to the right of    8
2     0               in   14
3     0   to the left of   13
4     1  to the right of    9
5     1  to the right of    6
6     2               in   14
7     2  to the right of    4
8     4   to the left of   13
9     4   to the left of    6
10    4   to the left of    2
11    4               on    3
12    6  to the right of   13
13    6   to the left of    1
14    6  to the right of    4
15    6  to the right of    0
16    8               in    5
17    8   to the left of   11
18    8   to the left of   13
19    8   to the left of    0
20    8   to the left of    9
21    9   to the left of    1
22    9  to the right of    8
23   11  to the right of    8
24   12               in    7
25   13   to the left of    6
26   13  to the right of    8
27   13  to the right of    0
28   13  to the right of    4