Which kind of furniture is the lamp on?
The lamp is on the coffee table.
    src        edge_attr  dst
0     0  to the right of   15
1     0   to the left of    7
2     1  to the right of    9
3     1               on    9
4     1  to the right of   13
5     2  to the right of   10
6     2  to the right of    3
7     2  to the right of    9
8     2  to the right of    4
9     3   to the left of    2
10    3   to the left of   10
11    3  to the right of   12
12    4               on    6
13    4   to the left of    2
14    5  to the right of    9
15    5  to the right of   13
16    6   to the left of    7
17    6   to the left of   11
18    6  to the right of   15
19    7               on   14
20    7  to the right of    0
21    7  to the right of    6
22    8  to the right of    9
23    9   to the left of    1
24    9   to the left of    2
25    9   to the left of    8
26    9   to the left of    5
27    9  to the right of   12
28   10   to the left of   11
29   10  to the right of    3
30   10   to the left of    2
31   11  to the right of    6
32   11  to the right of   10
33   12   to the left of    3
34   12   to the left of    9
35   13   to the left of    1
36   13   to the left of    5
37   14  to the right of   15
38   15   to the left of    0
39   15   to the left of   14
40   15   to the left of    6