What's on the vase?
The flowers are on the vase.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    4
2     1   to the left of    5
3     3               in    2
4     3               on    2
5     3               on    7
6     3   to the left of    0
7     4   to the left of    0
8     5  to the right of    1
9     6   to the left of    7
10    7  to the right of    6