What is on the platform?
The tree is on the platform.
    src        edge_attr  dst
0     0  to the right of    8
1     0   to the left of    6
2     1   to the left of    6
3     1  to the right of   11
4     1            above   10
5     1   to the left of    9
6     2  to the right of    3
7     2  to the right of    4
8     2  to the right of    8
9     3               on    4
10    3  to the right of    8
11    3   to the left of    2
12    4   to the left of    2
13    6  to the right of    1
14    6  to the right of    0
15    6               on    9
16    6  to the right of   11
17    6          next to   10
18    8   to the left of    0
19    8   to the left of    2
20    8   to the left of    3
21    9  to the right of   10
22    9  to the right of    1
23   10   to the left of    9
24   10             near    6
25   11   to the left of    1
26   11   to the left of    6