Who is in front of the scaffolding?
The police officer is in front of the scaffolding.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    4
2     0   to the left of    5
3     1   on the side of    4
4     1   to the left of    4
5     1   to the left of    9
6     2   to the left of    3
7     2           behind    8
8     3  to the right of    2
9     3   to the left of    6
10    3        on top of    8
11    4   to the left of    0
12    4  to the right of    1
13    4  to the right of    9
14    5  to the right of    0
15    6  to the right of    3
16    6   to the left of    8
17    8          wearing    3
18    8  to the right of    6
19    8      in front of    2
20    9  to the right of    1
21    9   to the left of    4
22    9   to the left of    0