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