Which kind of device is to the right of the lamp?
The device is a computer monitor.
    src        edge_attr  dst
0     0  to the right of    7
1     1  to the right of    7
2     2  to the right of    6
3     4               on    3
4     4  to the right of    9
5     6   to the left of    7
6     6   to the left of    2
7     7   to the left of    0
8     7               on    2
9     7   to the left of    1
10    7  to the right of    6
11    9   to the left of    4