Are there elephants or fences?
No, there are no elephants or fences.
   src        edge_attr  dst
0    3   to the left of    9
1    3   to the left of    8
2    6   to the left of    9
3    6   to the left of    8
4    8  to the right of    6
5    8  to the right of    3
6    8   to the left of   10
7    9  to the right of    3
8    9  to the right of    6
9   10  to the right of    8