Who is in front of the pole?
The boy is in front of the pole.
   src        edge_attr  dst
0    0   to the left of   15
1    0           behind    5
2    4   to the left of   14
3    5               on   11
4    5      in front of    0
5    7           behind   11
6   13   to the left of   14
7   14  to the right of    4
8   14  to the right of   13
9   15  to the right of    0