What kind of furniture is in front of the wall?
The piece of furniture is a couch.
    src        edge_attr  dst
0     0   to the left of   10
1     1           behind    4
2     2   to the left of   10
3     4      in front of    1
4     5         lying on    4
5     5       sitting on    4
6     8   to the left of   10
7     9   to the left of   10
8    10  to the right of    8
9    10  to the right of    2
10   10  to the right of    9
11   10  to the right of    0