What color is the vehicle that is made of wire?
The carriage is black.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of   10
2     0  to the right of    7
3     0  to the right of    4
4     1   to the left of    9
5     2   to the left of    9
6     2   to the left of    7
7     3               on    0
8     3  to the right of    9
9     3  to the right of    4
10    4   to the left of    0
11    4   to the left of    3
12    5        on top of    9
13    5            above    9
14    5            above    1
15    5   to the left of    9
16    7   to the left of    0
17    7   to the left of    9
18    7  to the right of    2
19    8   to the left of    9
20    9  to the right of    5
21    9   to the left of    0
22    9  to the right of    7
23    9   to the left of    3
24    9            below    5
25    9  to the right of    1
26    9  to the right of    2
27    9  to the right of    8
28   10   to the left of    0