What is he in front of?
The man is in front of the window.
    src        edge_attr  dst
0     0           behind   12
1     1   to the left of    9
2     1   to the left of    3
3     1   to the left of    6
4     2  to the right of   10
5     3  to the right of    1
6     4   to the left of    8
7     4   to the left of    7
8     4   to the left of   13
9     4   to the left of   11
10    6  to the right of    1
11    7  to the right of    4
12    8  to the right of    4
13    9  to the right of    1
14   10   to the left of    2
15   11  to the right of    4
16   12          wearing   10
17   12      in front of    0
18   12          wearing    9
19   12       working on   11
20   13  to the right of    4