Is the bridge in front of the skyscrapers?
Yes, the bridge is in front of the skyscrapers.
    src        edge_attr  dst
0     3   to the left of    8
1     4  to the right of    5
2     4           behind    6
3     5   to the left of    4
4     6      in front of    4
5     6      in front of    9
6     7               by    6
7     8  to the right of    9
8     8  to the right of    3
9     9   to the left of    8
10    9           behind    6