Which place is it?
It is a station.
    src        edge_attr  dst
0     0  to the right of   17
1     0   to the left of    8
2     1  to the right of    4
3     1  to the right of   18
4     4   to the left of   18
5     4  to the right of   14
6     4   to the left of    1
7     4   to the left of    6
8     6  to the right of   18
9     6  to the right of   10
10    6  to the right of    4
11    6  to the right of   19
12    7   to the left of   12
13    7  to the right of   16
14    8   to the left of   12
15    8  to the right of   16
16    8  to the right of    0
17    8   to the left of   18
18    9  to the right of   20
19   10  to the right of   12
20   10   to the left of    6
21   11  to the right of   16
22   11   to the left of   20
23   12  to the right of    8
24   12  to the right of    7
25   12   to the left of   19
26   12   to the left of   10
27   12   to the left of   18
28   12  to the right of   14
29   13  to the right of   18
30   14  to the right of   16
31   14   to the left of   12
32   14   to the left of   18
33   14   to the left of    4
34   15   to the left of   20
35   16   to the left of   14
36   16   to the left of   11
37   16   to the left of    7
38   16   to the left of    8
39   17               on   16
40   17   to the left of    0
41   18   to the left of    6
42   18  to the right of   12
43   18  to the right of    4
44   18  to the right of    8
45   18  to the right of   14
46   18   to the left of   13
47   18   to the left of    1
48   19   to the left of    6
49   19  to the right of   12
50   19               in   21
51   19  to the right of   20
52   20  to the right of   15
53   20   to the left of   19
54   20   to the left of    9
55   20  to the right of   11