What is in front of the wall?
The bicycle is in front of the wall.
    src        edge_attr  dst
0     0   to the left of    6
1     1               on    9
2     2   to the left of    6
3     3               by    6
4     3   to the left of    6
5     3       looking at    1
6     3          wearing    4
7     3               by    8
8     4   to the left of    6
9     4               on    3
10    6  to the right of    3
11    6  to the right of    2
12    6  to the right of    0
13    6  to the right of    4
14    6               on    9
15    7           behind    8
16    8      in front of    7