Is the fence made of metal tall or short?
The fence is short.
    src        edge_attr  dst
0     0   to the left of    8
1     1   to the left of    6
2     2  to the right of    8
3     6  to the right of    1
4     6  to the right of    9
5     7  to the right of   10
6     8   to the left of   12
7     8  to the right of    0
8     8   to the left of    2
9     9   to the left of    6
10   10   to the left of    7
11   12  to the right of    8
12   13               in    4