What type of vehicle has the same color as the fence made of metal?
The truck is the same color as the fence.
    src        edge_attr  dst
0     1          next to   12
1     1             near   12
2     1      in front of   12
3     2   to the left of    5
4     2  to the right of   20
5     5   to the left of   19
6     5   to the left of   14
7     5  to the right of    2
8     5  to the right of   20
9     5  to the right of   15
10    5  to the right of   13
11    5  to the right of   10
12    5               on    3
13    6               in    0
14    8   to the left of   20
15    9   to the left of   13
16   10   to the left of    5
17   12             near   17
18   12             near    1
19   13   to the left of    5
20   13  to the right of    9
21   14  to the right of    5
22   15  to the right of   20
23   15   to the left of    5
24   17          next to   12
25   17   to the left of   20
26   17               on    7
27   18               in   11
28   19  to the right of    5
29   20  to the right of   17
30   20   to the left of   15
31   20  to the right of    8
32   20   to the left of    5
33   20   to the left of    2