What are the flowers in?
The flowers are in the vase.
    src        edge_attr  dst
0     0  to the right of    3
1     0   to the left of    2
2     0   to the left of    7
3     1          contain    0
4     1       sitting in    2
5     1               in    2
6     2          holding    8
7     2  to the right of    3
8     2               on    6
9     2      in front of    5
10    2  to the right of    0
11    3   to the left of    2
12    3   to the left of    0
13    3   to the left of    7
14    4           behind    5
15    5           behind    2
16    5      in front of    4
17    7  to the right of    3
18    7  to the right of    0
19    8               in    2