What is the fence made of?
The fence is made of metal.
    src        edge_attr  dst
0     0  to the right of   10
1     0   to the left of   14
2     1  to the right of    5
3     1  to the right of   18
4     2   to the left of   16
5     2   to the left of    6
6     2   to the left of    5
7     2  to the right of   15
8     2   to the left of   17
9     2          wearing    4
10    4   to the left of    6
11    4   to the left of    5
12    4   to the left of   17
13    5  to the right of    2
14    5  to the right of   17
15    5  to the right of   16
16    5  to the right of    4
17    5   to the left of    1
18    5   to the left of   14
19    5  to the right of    6
20    5  to the right of   13
21    6  to the right of    2
22    6  to the right of    4
23    6   to the left of    5
24    6   to the left of   18
25    6  to the right of   10
26   10   to the left of   17
27   10   to the left of    6
28   10   to the left of    0
29   13   to the left of    5
30   14  to the right of   18
31   14  to the right of    0
32   14  to the right of    5
33   14       looking at   17
34   15   to the left of   17
35   15   to the left of    2
36   16  to the right of    2
37   16   to the left of    5
38   17  to the right of   10
39   17  to the right of    2
40   17          wearing   16
41   17  to the right of    4
42   17   to the left of    5
43   17   to the left of   18
44   17  to the right of   15
45   18  to the right of   17
46   18  to the right of    6
47   18   to the left of    1
48   18   to the left of   14