What color is the sculpture in front of the curtains?
The sculpture is green.
    src        edge_attr  dst
0     0   to the left of   16
1     1           behind    5
2     2   to the left of    3
3     3  to the right of    2
4     3   to the left of   14
5     3  to the right of    8
6     4       sitting on   10
7     4      in front of    7
8     5   to the left of    7
9     5   to the left of    9
10    5      in front of    1
11    5  to the right of   15
12    7  to the right of    9
13    7  to the right of   14
14    7           behind    4
15    7  to the right of    5
16    8   to the left of    3
17    8   to the left of   14
18    8   to the left of   12
19    9   to the left of    7
20    9  to the right of    5
21    9  to the right of   11
22   11               on    4
23   11   to the left of    9
24   12  to the right of    8
25   13   to the left of   16
26   13  to the right of   14
27   14  to the right of    3
28   14   to the left of    7
29   14  to the right of    8
30   14   to the left of   13
31   15   to the left of    5
32   16  to the right of   13
33   16  to the right of    0
34   18               of   17