What's the power line in front of?
The power line is in front of the hills.
    src        edge_attr  dst
0     0               in    6
1     1             near    5
2     2  to the right of    8
3     3           behind    4
4     3               in    4
5     3      in front of    2
6     4      in front of    2
7     4      in front of    3
8     5           eating    4
9     5             near    1
10    7               on    2
11    8   to the left of    2