Is the ground rocky or bare?
The ground is rocky.
    src        edge_attr  dst
0     1             near    9
1     2       growing on    9
2     2  to the right of    4
3     2  to the right of    3
4     3   to the left of    2
5     4               on    3
6     4           riding    3
7     4   to the left of   11
8     4   to the left of    2
9     9          next to    1
10   10   to the left of   16
11   11  to the right of    4
12   14   to the left of   15
13   14   to the left of   17
14   15  to the right of   14
15   16  to the right of   10
16   17  to the right of   14