Which place is it?
It is a runway.
    src        edge_attr  dst
0     0   to the left of    6
1     1  to the right of    4
2     1   to the left of    6
3     3   to the left of   11
4     4   to the left of    1
5     4  to the right of   10
6     4  to the right of   11
7     4   to the left of    6
8     5  to the right of    9
9     6  to the right of    4
10    6  to the right of    0
11    6  to the right of    1
12    9   to the left of    5
13   10   to the left of    4
14   11  to the right of    3
15   11   to the left of    4