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