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