Do the flag and the building have the same color?
Yes, both the flag and the building are white.
   src        edge_attr  dst
0    0               on    0
1    1   to the left of    4
2    4  to the right of    1
3    6  to the right of    7
4    7   to the left of    6
5    8         crossing   10
6    9               in   10