What is in front of the building?
The street lamp is in front of the building.
    src        edge_attr  dst
0     0               on   13
1     0   to the left of    4
2     1  to the right of    9
3     1  to the right of    8
4     1  to the right of    3
5     3   to the left of    1
6     3   to the left of    9
7     3   to the left of    8
8     4               on    6
9     4  to the right of    0
10    7               on    6
11    7               on    5
12    7  to the right of   13
13    8   to the left of    1
14    8  to the right of    3
15    8   to the left of    9
16    9  to the right of    3
17    9   to the left of    1
18    9  to the right of    8
19   10  to the right of   13
20   11           behind   13
21   12             near   13
22   12          next to   13
23   12  to the right of   13
24   13      in front of   11
25   13   to the left of   10
26   13   to the left of   12
27   13   to the left of    7
28   13           beside   11
29   13             near   12