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