The fence is around what?
The fence is around the castle.
    src        edge_attr  dst
0     1               on    0
1     3  to the right of   17
2     3   to the left of    4
3     4   to the left of   10
4     4  to the right of    3
5     5       growing on   10
6     6             near   14
7     7             near   10
8     7   to the left of   10
9     7  to the right of   13
10    7           around   10
11    7             near    8
12    8             near    7
13    8   to the left of   10
14    9   to the left of   10
15   10             near    7
16   10  to the right of    8
17   10  to the right of    9
18   10  to the right of   11
19   10  to the right of   13
20   10  to the right of   15
21   10  to the right of    7
22   10  to the right of    4
23   11   to the left of   10
24   13   to the left of   10
25   13  to the right of   15
26   13   to the left of    7
27   14             near    6
28   15   to the left of   13
29   15   to the left of   10
30   17   to the left of    3