What is in front of the mountains?
The fence is in front of the mountains.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    7
2     0  to the right of    1
3     1  to the right of   14
4     1   to the left of    0
5     1  to the right of   13
6     2  to the right of   13
7     2               of    9
8     3               of    1
9     5             near   12
10    6  to the right of   14
11    6  to the right of   13
12    6   to the left of   12
13    6   to the left of   11
14    7               of    1
15    7   to the left of    0
16    8   to the left of    9
17    9  to the right of   13
18    9   to the left of    0
19    9  to the right of    8
20    9  to the right of   14
21    9               on   16
22   10               of    9
23   10  to the right of   13
24   11  to the right of    6
25   12             near    5
26   12  to the right of    6
27   13   to the left of    2
28   13      in front of   14
29   13   to the left of    1
30   13   to the left of   10
31   13   to the left of    9
32   13   to the left of    6
33   14   to the left of    9
34   14   to the left of    6
35   14   to the left of    1
36   14           behind   13
37   16               on    5