Where is it?
This is at the station.
    src        edge_attr  dst
0     1  to the right of   17
1     1  to the right of   11
2     1   to the left of   12
3     7               on   13
4    11  to the right of   17
5    11   to the left of    1
6    11   to the left of   12
7    12  to the right of    1
8    12  to the right of   17
9    12  to the right of   11
10   15  to the right of   16
11   15  to the right of   20
12   15  to the right of   19
13   16  to the right of   18
14   16   to the left of   15
15   16  to the right of   20
16   16  to the right of   19
17   17   to the left of    1
18   17   to the left of   12
19   17   to the left of   11
20   18   to the left of   19
21   18   to the left of   16
22   18   to the left of   20
23   19   to the left of   15
24   19   to the left of   16
25   19  to the right of   18
26   19  to the right of   20
27   20   to the left of   19
28   20   to the left of   15
29   20   to the left of   16
30   20  to the right of   18