What type of material was used to make the fence to the right of the man?
The fence is made of wood.
    src        edge_attr  dst
0     0  to the right of   11
1     0  to the right of    9
2     1   to the left of    2
3     1  to the right of   11
4     2  to the right of   11
5     2   to the left of   13
6     2  to the right of    1
7     3   to the left of   13
8     3  to the right of   11
9     4  to the right of   11
10    6   to the left of   13
11    6  to the right of   11
12    7  to the right of    8
13    7          next to   11
14    7  to the right of   10
15    8          next to   11
16    8   to the left of   12
17    8  to the right of   10
18    8   to the left of    7
19    9   to the left of    0
20   10   to the left of    7
21   10   to the left of    8
22   10          next to   11
23   10   to the left of   12
24   11             near   10
25   11             near    7
26   11             near    8
27   11   to the left of    6
28   11   to the left of    2
29   11   to the left of   15
30   11   to the left of    3
31   11   to the left of    4
32   11   to the left of    1
33   11   to the left of    0
34   11   to the left of   13
35   12  to the right of   10
36   12               on    3
37   12  to the right of    8
38   13  to the right of   11
39   13  to the right of    2
40   13  to the right of    6
41   13  to the right of    3
42   15  to the right of   11