What vehicle is not black?
The vehicle is a car.
    src        edge_attr  dst
0     0               on   19
1     1  to the right of   17
2     2  to the right of   16
3     2  to the right of   12
4     2   to the left of   15
5     2  to the right of   14
6     3   to the left of   15
7     5       walking on    6
8     5  to the right of   16
9     5  to the right of   14
10    5  to the right of   21
11    7   to the left of   21
12    7   to the left of   17
13    8   to the left of   17
14    8  to the right of   11
15    8   to the left of   21
16    9   to the left of   21
17    9   to the left of   17
18    9  to the right of   11
19   10   to the left of   15
20   10  to the right of   16
21   10  to the right of   21
22   11   to the left of    8
23   11   to the left of    9
24   12   to the left of    2
25   12   to the left of   15
26   13   to the left of   16
27   13   to the left of   19
28   14   to the left of    2
29   14   to the left of    5
30   14   to the left of   15
31   15  to the right of   21
32   15  to the right of    3
33   15  to the right of    2
34   15  to the right of   10
35   15  to the right of   16
36   15  to the right of   14
37   15  to the right of   12
38   16  to the right of   13
39   16   to the left of   15
40   16   to the left of    2
41   16   to the left of    5
42   16   to the left of   10
43   17  to the right of    9
44   17  to the right of    7
45   17  to the right of    8
46   17   to the left of    1
47   18   to the left of   21
48   19  to the right of   13
49   20   to the left of   21
50   21  to the right of   18
51   21   to the left of   15
52   21   to the left of   10
53   21  to the right of   20
54   21   to the left of    5
55   21  to the right of    7
56   21  to the right of    8
57   21  to the right of    9