What is in front of the mountains?
The city is in front of the mountains.
    src        edge_attr  dst
0     0  to the right of   16
1     0   to the left of   20
2     1           behind   16
3     1  to the right of    9
4     1   to the left of    8
5     1   to the left of   16
6     2   to the left of   16
7     2           behind   16
8     3   to the left of    5
9     3   to the left of   16
10    3           behind   16
11    4  to the right of   16
12    4   to the left of   18
13    4           behind   16
14    5           behind   16
15    5  to the right of    3
16    5  to the right of   16
17    6      in front of   10
18    8  to the right of    1
19    8  to the right of   17
20    8  to the right of   12
21    9   to the left of   14
22    9   to the left of    1
23   10   to the left of   16
24   10   to the left of   15
25   10           behind    6
26   11   to the left of   13
27   12   to the left of    8
28   12   to the left of   16
29   12  to the right of   17
30   13  to the right of   11
31   14   to the left of   16
32   14  to the right of    9
33   15  to the right of   10
34   16  to the right of   10
35   16  to the right of   12
36   16  to the right of   17
37   16  to the right of   14
38   16   to the left of    5
39   16   to the left of    4
40   16  to the right of    3
41   16  to the right of    1
42   16  to the right of    2
43   16   to the left of    0
44   16   to the left of   18
45   16      in front of    4
46   16      in front of    5
47   16      in front of    2
48   16      in front of    3
49   16      in front of    1
50   17   to the left of   12
51   17   to the left of    8
52   17   to the left of   16
53   18  to the right of    4
54   18  to the right of   16
55   20  to the right of    0