Who is in front of the wall?
The man is in front of the wall.
    src        edge_attr  dst
0     0  to the right of    8
1     0             near    2
2     1            above    7
3     2               on    5
4     2          next to    0
5     2           beside    3
6     2               on    1
7     2   to the left of   11
8     2   to the left of    3
9     3          wearing   11
10    3           riding    0
11    3          wearing   10
12    3      in front of    9
13    3               on    0
14    3  to the right of    8
15    3  to the right of    2
16    3               on    1
17    3               on    5
18    4  to the right of    7
19    7            under    1
20    7   to the left of    4
21    8   to the left of    3
22    8   to the left of    0
23    8   to the left of   11
24    9           behind    3
25   11  to the right of    8
26   11  to the right of    2