Which color is the fence that is behind her?
The fence is silver.
    src        edge_attr  dst
0     0          wearing    6
1     0          wearing   17
2     0          holding    9
3     0      in front of    4
4     0          wearing    8
5     0          wearing    5
6     0          wearing   18
7     0          wearing    7
8     1   to the left of   11
9     1   to the left of   10
10    1   to the left of   13
11    1   to the left of   12
12    1   to the left of   16
13    1   to the left of   15
14    1   to the left of   14
15    2  to the right of   10
16    2  to the right of   15
17    2  to the right of   12
18    2  to the right of   11
19    2  to the right of   13
20    3             near    4
21    4           behind    0
22    4             near    3
23   10   to the left of    2
24   10  to the right of   15
25   10  to the right of   11
26   10  to the right of   13
27   10               of    0
28   10  to the right of    1
29   11               of    0
30   11  to the right of    1
31   11   to the left of    2
32   11   to the left of   10
33   11  to the right of   13
34   12  to the right of    1
35   12   to the left of    2
36   12               of    0
37   13   to the left of   11
38   13   to the left of   10
39   13   to the left of    2
40   13  to the right of    1
41   13               of    0
42   14   on the back of    6
43   14  to the right of    1
44   15               of    0
45   15  to the right of    1
46   15   to the left of   10
47   15   to the left of    2
48   16  to the right of    1
49   16               of    0