What is in front of the building that is made out of metal?
The street sign is in front of the building.
    src        edge_attr  dst
0     0   to the left of    1
1     0   to the left of    2
2     0   to the left of   11
3     0   to the left of    5
4     0   to the left of    6
..  ...              ...  ...
74   15   to the left of   16
75   16  to the right of    9
76   16  to the right of   15
77   16  to the right of   11
78   16  to the right of    4

[79 rows x 3 columns]