What color does the building that the teddy bear is behind of have?
The Eiffel tower has silver color.
    src        edge_attr  dst
0     0             near    4
1     0      in front of    3
2     0             near    3
3     1  to the right of    4
4     2   to the left of    5
5     3          next to    0
6     3             near    0
7     3           behind    0
8     4   to the left of    1
9     4          next to    0
10    5  to the right of    2