Does the device to the right of the bookshelf look white or blue?
The screen is blue.
    src        edge_attr  dst
0     1   to the left of   11
1     2  to the right of   11
2     5   to the left of   14
3     5   to the left of   12
4     6   to the left of   12
5     9  to the right of   13
6    10  to the right of   12
7    11   to the left of    2
8    11  to the right of    1
9    12   to the left of   10
10   12  to the right of    6
11   12  to the right of   15
12   12  to the right of   16
13   12  to the right of    5
14   13   to the left of   14
15   13   to the left of    9
16   14  to the right of    5
17   14  to the right of   13
18   14  to the right of   16
19   14  to the right of   15
20   15   to the left of   12
21   15   to the left of   14
22   16   to the left of   12
23   16   to the left of   14