Which place is it?
It is an airport.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of    4
2     0   to the left of   12
3     2  to the right of   18
4     2  to the right of   19
5     3  to the right of   12
6     4   to the left of    0
7     6  to the right of    9
8     6   to the left of   18
9     9   to the left of    6
10   11             near   14
11   11   to the left of   12
12   11  to the right of    0
13   12  to the right of    0
14   12   to the left of    3
15   12  to the right of   11
16   14             near   11
17   18   to the left of    2
18   18  to the right of    6
19   18  to the right of   19
20   19   to the left of    2
21   19   to the left of   18
22   22             near   23
23   23             near   22