What kind of device is on top of the table that is made of wood?
The device is a camera.
    src        edge_attr  dst
0     1  to the right of    9
1     2  to the right of    9
2     2  on the front of    7
3     3  to the right of    8
4     4               on    5
5     4        on top of    5
6     7               on    5
7     7        on top of    5
8     7  to the right of    9
9     7               by    9
10    8   to the left of    3
11    9   to the left of    2
12    9   to the left of    1
13    9               on    5
14    9   to the left of    7
15    9        on top of    5