What device is on the desk?
The device is a computer monitor.
    src        edge_attr  dst
0     0   to the left of    8
1     1   to the left of    6
2     1  to the right of    2
3     1  to the right of    8
4     1  to the right of    7
5     2   to the left of    1
6     2   to the left of    6
7     3   to the left of    8
8     5  to the right of    8
9     5  to the right of    7
10    6  to the right of    7
11    6  to the right of    1
12    6  to the right of    2
13    7   to the left of    6
14    7   to the left of    5
15    7   to the left of    1
16    8  to the right of    0
17    8               on    7
18    8  to the right of    3
19    8   to the left of    5
20    8   to the left of    1