What color is the street sign?
The street sign is blue.
    src        edge_attr  dst
0     2  to the right of   17
1     2  to the right of   16
2     2  to the right of    7
3     2   to the left of    5
4     3   to the left of   11
5     3   to the left of   16
6     3  to the right of   14
7     3  to the right of   13
8     3   to the left of    7
9     3   to the left of    4
10    4  to the right of   10
11    4  to the right of   14
12    4  to the right of   13
13    4  to the right of   17
14    4  to the right of    3
15    5               on    4
16    5  to the right of    2
17    5  to the right of    7
18    7  to the right of   16
19    7  to the right of   17
20    7  to the right of    3
21    7   to the left of    5
22    7   to the left of    2
23    7               on    6
24    9   to the left of   11
25    9               on   15
26   10   to the left of   17
27   10   to the left of    4
28   11  to the right of    3
29   11  to the right of   15
30   11  to the right of    9
31   13   to the left of    4
32   13   to the left of    3
33   13   to the left of   17
34   13   to the left of   16
35   13               on   10
36   14   to the left of    4
37   14   to the left of    3
38   14   to the left of   17
39   14   to the left of   16
40   15   to the left of   11
41   16  to the right of   13
42   16  to the right of   14
43   16  to the right of    3
44   16   to the left of    7
45   16   to the left of    2
46   17  to the right of   13
47   17  to the right of   14
48   17   to the left of    4
49   17   to the left of    7
50   17   to the left of    2
51   17  to the right of   10
52   17          wearing    3