What kind of furniture is the boy lying on?
The boy is lying on the bed.
    src        edge_attr  dst
0     0  to the right of    6
1     1  to the right of   11
2     5               on    2
3     6   to the left of    0
4     6   to the left of    7
5     7  to the right of    6
6     7  to the right of   10
7     8               on    3
8     9          wearing    0
9     9         lying on    2
10   10   to the left of    7
11   11   to the left of    1