Where is it?
This is at the pasture.
    src        edge_attr  dst
0     1       grazing in    0
1     2   to the left of    7
2     2   to the left of    6
3     4  to the right of    5
4     5   to the left of    4
5     6  to the right of    7
6     6  to the right of    2
7     7   to the left of    6
8     7  to the right of    2
9     8  to the right of   10
10   10               of   10
11   10   to the left of   12
12   10   to the left of    8
13   12  to the right of   10