Are there both a fence and a cow in this photo?
Yes, there are both a cow and a fence.
   src        edge_attr  dst
0    0   to the left of    3
1    3  to the right of    0
2    4  to the right of    5
3    4  to the right of   11
4    5  to the right of   11
5    5   to the left of    4
6    6  to the right of   10
7   10   to the left of    6
8   11   to the left of    5
9   11   to the left of    4