Which kind of device is white?
The device is a computer.
    src        edge_attr  dst
0     0      in front of    7
1     1               on    7
2     1  to the right of    4
3     1  to the right of    5
4     1  to the right of   11
5     1  to the right of    8
6     3   to the left of    4
7     3   to the left of   11
8     3   to the left of    8
9     4   to the left of    6
10    4  to the right of    3
11    4               on    7
12    4   to the left of    1
13    5   to the left of    1
14    5   to the left of    8
15    6  to the right of    4
16    6  to the right of   11
17    7           behind    0
18    7            below   10
19    8  to the right of    9
20    8               on    7
21    8  to the right of    3
22    8   to the left of    1
23    8  to the right of    5
24    9   to the left of    8
25   10            above    7
26   11   to the left of    6
27   11  to the right of   12
28   11   to the left of    1
29   11  to the right of    3
30   11               on    7
31   12   to the left of   11