What is the fence made of?
The fence is made of brick.
    src        edge_attr  dst
0     0               on    2
1     0  to the right of   11
2     0  to the right of    9
3     1   to the left of    7
4     1   to the left of    6
5     1   to the left of   14
6     1               by   14
7     2  to the right of    9
8     2  to the right of   11
9     4             near    5
10    4   to the left of   14
11    5   to the left of   14
12    5             near    4
13    6  to the right of    1
14    6   to the left of    7
15    6   to the left of   14
16    7  to the right of    6
17    7  to the right of    1
18    7   to the left of   12
19    7   to the left of   10
20    9               on    2
21    9   to the left of    0
22    9  to the right of   11
23    9   to the left of    2
24   10          wearing   12
25   10          wearing   15
26   10  to the right of    7
27   10          wearing    2
28   11   to the left of    0
29   11   to the left of    2
30   11   to the left of    9
31   12  to the right of    7
32   13  to the right of   22
33   14  to the right of    1
34   14  to the right of    4
35   14  to the right of    5
36   14  to the right of    6
37   15               on   21
38   17  to the right of   23
39   17  to the right of   22
40   18  to the right of   19
41   18               of   13
42   19   to the left of   18
43   19               of   13
44   20               of   13
45   20  to the right of   22
46   22   to the left of   20
47   22   to the left of   13
48   22   to the left of   23
49   22   to the left of   17
50   22               on   13
51   23   to the left of   17
52   23  to the right of   22