Which place is it?
It is a city.
    src        edge_attr  dst
0     0   to the left of   12
1     0   to the left of   19
2     1   to the left of    9
3     1   to the left of   10
4     2           behind    3
5     2   to the left of   12
6     2   to the left of   19
7     3   to the left of   19
8     5   to the left of    9
9     5   to the left of   11
10    6  to the right of    9
11    6  to the right of   10
12    8  to the right of   11
13    9   to the left of   14
14    9  to the right of    5
15    9   to the left of    6
16    9  to the right of    1
17    9  to the right of   16
18    9   to the left of   17
19    9   to the left of   13
20   10  to the right of    1
21   10   to the left of    6
22   11  to the right of   16
23   11   to the left of    8
24   11  to the right of    5
25   12  to the right of   18
26   12  to the right of   16
27   12  to the right of   20
28   12  to the right of    0
29   12  to the right of    2
30   13  to the right of    9
31   14  to the right of   17
32   14  to the right of    9
33   16   to the left of   12
34   16   to the left of   11
35   16   to the left of    9
36   16   to the left of   19
37   17  to the right of    9
38   17               on    6
39   17   to the left of   14
40   18   to the left of   12
41   18   to the left of   19
42   19  to the right of   18
43   19  to the right of   16
44   19  to the right of    2
45   19  to the right of   20
46   19  to the right of    3
47   19  to the right of    0
48   20   to the left of   19
49   20   to the left of   12