What is the device that is black?
The device is a laptop.
    src        edge_attr  dst
0     0  to the right of    6
1     0  to the right of    5
2     1  to the right of    7
3     1  to the right of    5
4     2   to the left of    8
5     4   to the left of    8
6     5   to the left of    1
7     5   to the left of    0
8     5   to the left of    9
9     5   to the left of    8
10    6   to the left of    8
11    6   to the left of    0
12    6             near    7
13    6   to the left of    9
14    7         touching    9
15    7            using    9
16    7             near    6
17    7               at    8
18    7   to the left of    1
19    7   to the left of    9
20    7   to the left of    8
21    7       sitting at    8
22    8  to the right of    7
23    8  to the right of   11
24    8  to the right of   12
25    8  to the right of    4
26    8  to the right of    2
27    8  to the right of    6
28    8  to the right of    5
29    9               at    8
30    9               on    8
31    9  to the right of    5
32    9  to the right of    6
33    9  to the right of    7
34   11   to the left of    8
35   11   to the left of   12
36   12   to the left of    8
37   12  to the right of   11