The trunk is on what?
The trunk is on the shrub.
    src        edge_attr  dst
0     0             near    3
1     0   to the left of    7
2     0      in front of    5
3     0               on    1
4     0   to the left of    4
5     0          next to    3
6     0      standing by    3
7     0   to the left of   10
8     0   to the left of    3
9     3  to the right of    0
10    3             near    0
11    4  to the right of    0
12    5           behind    0
13    5               on    3
14    6               of    0
15    7  to the right of    0
16    9  to the right of   16
17   10  to the right of    0
18   12               of    0
19   13               of    0
20   14               of    0
21   15               of    0
22   16   to the left of    9