Where is the platform?
The platform is at the train station.
    src        edge_attr  dst
0     0               at   11
1     0           behind   10
2     2  to the right of   15
3     2  to the right of    7
4     3   to the left of    6
5     4  to the right of   14
6     4   to the left of    5
7     5  to the right of   15
8     5  to the right of    4
9     6   to the left of   13
10    6   to the left of    9
11    6  to the right of    8
12    6  to the right of    3
13    7  to the right of   15
14    7   to the left of    2
15    8   to the left of    6
16    9  to the right of   10
17    9  to the right of    6
18   10   to the left of    9
19   10   to the left of   13
20   10      in front of    0
21   12               at   11
22   13  to the right of    6
23   13  to the right of   10
24   14   to the left of   15
25   14   to the left of    4
26   15  to the right of   14
27   15   to the left of    5
28   15   to the left of    7
29   15   to the left of    2