Is there a bridge that is blue?
No, there is a bridge but it is white.
    src        edge_attr  dst
0     0   to the left of    5
1     1  to the right of    4
2     2  to the right of    4
3     3  to the right of    4
4     4   to the left of    2
5     4   to the left of    1
6     4   to the left of    6
7     4   to the left of    3
8     5  to the right of    0
9     6  to the right of    4
10    7               on    1