What device is on the desk?
The device is a keyboard.
    src        edge_attr  dst
0     1   to the left of    7
1     1   to the left of    8
2     2   to the left of   10
3     2   to the left of    9
4     3   to the left of    4
5     3               on   11
6     4  to the right of    3
7     4  to the right of   11
8     5             near    6
9     6  to the right of    9
10    6             near    5
11    7               on    0
12    7  to the right of    1
13    8               on    0
14    8  to the right of    1
15    9   to the left of    6
16    9  to the right of    2
17    9   to the left of   12
18   10  to the right of    2
19   10   to the left of   12
20   11   to the left of    4
21   12  to the right of    9
22   12  to the right of   10