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