Who is in front of the truck?
The man is in front of the truck.
   src           edge_attr  dst
0    0     to the right of    4
1    1      on the side of    3
2    2         in front of    4
3    2      to the left of    5
4    4  parked in front of    3
5    4              behind    2
6    4      to the left of    5
7    4      to the left of    0
8    5     to the right of    4
9    5     to the right of    2