In front of what kind of furniture is the bathtub?
The bath tub is in front of the shelf.
    src        edge_attr  dst
0     1  to the right of   11
1     1  to the right of    7
2     1      in front of    6
3     2  to the right of    7
4     3       hanging on    2
5     3  to the right of    5
6     4   to the left of   12
7     4  to the right of    5
8     4  to the right of    7
9     5   to the left of   10
10    5  to the right of    7
11    5   to the left of    3
12    5   to the left of    4
13    6           behind    1
14    6  to the right of    7
15    7   to the left of    6
16    7   to the left of    1
17    7   to the left of    2
18    7   to the left of    4
19    7   to the left of   10
20    7   to the left of    9
21    7   to the left of   14
22    7   to the left of    5
23    9  to the right of    7
24   10  to the right of    7
25   10  to the right of    5
26   11   to the left of   15
27   11   to the left of    1
28   12  to the right of    4
29   13       hanging on    7
30   14  to the right of    7
31   15  to the right of   11