What kind of furniture is on the floor?
The pieces of furniture are tables.
    src        edge_attr  dst
0     0               on    4
1     1  to the right of    6
2     1  to the right of    5
3     2  to the right of    5
4     3  to the right of   13
5     5   to the left of    2
6     5   to the left of    1
7     5            under    6
8     5            below    6
9     6   to the left of    1
10    7  to the right of    8
11    7   to the left of   13
12    8   to the left of    7
13    8   to the left of   11
14    8   to the left of   13
15   11  to the right of    8
16   11   to the left of   13
17   13   to the left of    3
18   13  to the right of    7
19   13  to the right of    8
20   13  to the right of   11