Which place is it?
It is a field.
    src        edge_attr  dst
0     0  to the right of    4
1     1  to the right of   13
2     4   to the left of    0
3     5   to the left of   10
4     5   to the left of    7
5     5  to the right of   14
6     5   to the left of   12
7     6  to the right of   12
8     6  to the right of    7
9     7  to the right of    5
10    7   to the left of    6
11    7               of   12
12    7  to the right of   10
13   10  to the right of    5
14   10  to the right of   14
15   10   to the left of    7
16   12  to the right of   14
17   12  to the right of    5
18   12   to the left of    6
19   13   to the left of    1
20   14   to the left of    5
21   14   to the left of   10
22   14   to the left of   12