What is parked in front of the building?
The bus is parked in front of the building.
    src           edge_attr  dst
0     0              beside   10
1     0              beside   15
2     1     to the right of   11
3     1     to the right of    9
4     2      to the left of   15
5     4                  in    8
6     5      to the left of   15
7     7      to the left of    9
8     9  parked in front of    7
9     9     to the right of   12
10    9      to the left of    1
11    9     to the right of    7
12   10     to the right of   15
13   11      to the left of   15
14   11      to the left of    1
15   11          driving on   16
16   12      to the left of    9
17   13      to the left of   15
18   15              beside   16
19   15     to the right of    5
20   15      to the left of   10
21   15     to the right of    2
22   15     to the right of   13
23   15     to the right of   11