Are there either tables or lamps?
Yes, there is a lamp.
    src        edge_attr  dst
0     0   to the left of    6
1     0               on    5
2     0        on top of    5
3     1               by    0
4     1  to the right of    2
5     1   to the left of    6
6     2   to the left of    1
7     2   to the left of    6
8     3   to the left of    9
9     3   to the left of    4
10    4   to the left of   10
11    4   to the left of    7
12    4  to the right of    5
13    4  to the right of    3
14    5   to the left of    4
15    5   to the left of    9
16    6  to the right of    2
17    6  to the right of    0
18    6  to the right of    1
19    6   to the left of    7
20    7               on    8
21    7  to the right of    6
22    7  to the right of    4
23    7   to the left of   10
24    9   to the left of   10
25    9  to the right of    5
26    9  to the right of    3
27   10  to the right of    9
28   10  to the right of    7
29   10  to the right of    4