Which place is it?
It is a pasture.
    src        edge_attr  dst
0     0  to the right of    8
1     0  to the right of   15
2     2   to the left of   17
3     2  to the right of    5
4     2   to the left of    3
5     3   to the left of    6
6     3  to the right of    2
7     3  to the right of    5
8     3   to the left of   17
9     5   to the left of    3
10    5   to the left of    2
11    6  to the right of   17
12    6  to the right of    3
13    7   to the left of   10
14    8   to the left of   13
15    8   to the left of    0
16   10  to the right of    7
17   11   to the left of   16
18   11  to the right of   15
19   13  to the right of    8
20   15   to the left of    0
21   15   to the left of   11
22   16  to the right of   11
23   17   to the left of    6
24   17  to the right of    3
25   17  to the right of    2