What kind of device is not gray, the laptop computer or the screen?
The screen is not gray.
    src        edge_attr  dst
0     1   to the left of    3
1     1               of    7
2     3  to the right of    1
3     3  to the right of    7
4     3  to the right of    6
5     3  to the right of   17
6     3  to the right of    8
7     6   to the left of    3
8     6  to the right of   10
9     6   to the left of    8
10    7      sleeping on    5
11    7  to the right of   10
12    7  to the right of   11
13    7   to the left of    3
14    8   to the left of    3
15    8  to the right of    6
16    8               of    7
17   10   to the left of    7
18   10               on    9
19   10   to the left of    6
20   11   to the left of   15
21   11         lying on    5
22   11   to the left of   13
23   11   to the left of    7
24   13  to the right of   11
25   13         lying on    5
26   15  to the right of   11
27   17   to the left of    3