Which place is it?
It is a field.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of    3
2     2   to the left of    3
3     3   to the left of    0
4     3  to the right of    2
5     3  to the right of    6
6     3  to the right of    5
7     5   to the left of    3
8     5   to the left of    7
9     6   to the left of    3
10    7   to the left of    0
11    7  to the right of    5