Which kind of device is black?
The device is a laptop.
    src        edge_attr  dst
0     0  to the right of    1
1     0  to the right of   13
2     0  to the right of    3
3     1   to the left of    4
4     1   to the left of    0
5     1   to the left of    8
6     3   to the left of    0
7     4  to the right of    1
8     6          wearing    5
9     8  to the right of    1
10   11               of    4
11   13   to the left of    0