Do the sign and the car have the same color?
Yes, both the sign and the car are black.
    src        edge_attr  dst
0     0               on    5
1     0   to the left of   14
2     0   to the left of   12
3     1  to the right of   13
4     2               on   11
5     3               by    5
6     3   to the left of   10
7     4               in   16
8     4   to the left of   10
9     5   to the left of    9
10    5   to the left of   14
11    5   to the left of   13
12    5   to the left of   12
13    7               of   11
14    9               on    8
15    9  to the right of   10
16    9  to the right of    5
17    9  to the right of   14
18    9      in front of   12
19   10               on   11
20   10   to the left of    9
21   10  to the right of    3
22   10  to the right of    4
23   11        parked on    8
24   12  to the right of    0
25   12           behind    9
26   12  to the right of    5
27   13  to the right of    5
28   13  to the right of   14
29   13   to the left of    1
30   14   to the left of   13
31   14  to the right of    0
32   14   to the left of    9
33   14  to the right of    5
34   14               on   11