What is on the white wall?
The switch is on the wall.
    src        edge_attr  dst
0     0   to the left of   10
1     1   to the left of   12
2     1               on   12
3     1   to the left of   11
4     2            above   12
5     2   to the left of   10
6     2   to the left of    9
7     3   to the left of   10
8     3               in   12
9     4            under   12
10    4            below   12
11    5  to the right of   11
12    5   to the left of   14
13    5  to the right of   16
14    6               in    5
15    6   to the left of   14
16    6  to the right of   16
17    6  to the right of   11
18    7             near   12
19    7          next to   12
20    9               on   10
21    9  to the right of    2
22   10  to the right of   11
23   10  to the right of    3
24   10  to the right of    0
25   10  to the right of   15
26   10  to the right of    2
27   10  to the right of   16
28   10  to the right of   12
29   11  to the right of   16
30   11  to the right of   13
31   11   to the left of   10
32   11   to the left of    5
33   11               of   12
34   11  to the right of    1
35   11   to the left of    6
36   11   to the left of   14
37   12   to the left of   10
38   12  to the right of    1
39   12            below    2
40   12             near    7
41   12            above    4
42   12               in    8
43   13               on   12
44   13   to the left of   16
45   13   to the left of   11
46   14  to the right of    5
47   14  to the right of    6
48   14  to the right of   11
49   14               on   12
50   15               on   12
51   15   to the left of   10
52   16               on   12
53   16   to the left of    6
54   16   to the left of   10
55   16   to the left of    5
56   16   to the left of   11
57   16  to the right of   13