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