What's the bag in front of?
The bag is in front of the bench.
   src        edge_attr  dst
0    0       sitting on    2
1    0  to the right of   11
2    2            above   11
3    2           behind   11
4    8            above    9
5   10   on the side of    1
6   11       sitting on    9
7   11            under    2
8   11      in front of    2
9   11   to the left of    0