What color is the traffic light on the left?
The traffic light is red.
    src        edge_attr  dst
0     0               by    8
1     0           beside    8
2     1   to the left of   19
3     1   to the left of   20
4     1  to the right of   21
5     1   to the left of    7
6     1  to the right of   18
7     2  to the right of   10
8     2  to the right of   17
9     3  to the right of   19
10    4  to the right of    7
11    4  to the right of    6
12    4  to the right of   19
13    4  to the right of   16
14    4  to the right of    8
15    5  to the right of   22
16    5            above    8
17    6  to the right of   11
18    6   to the left of    4
19    7  to the right of   20
20    7   to the left of    4
21    7  to the right of    1
22    7  to the right of   11
23    8            below   12
24    8            below    5
25    8   to the left of    4
26   10   to the left of    2
27   10   to the left of   12
28   11   to the left of    6
29   11   to the left of    7
30   11   to the left of   20
31   11   to the left of   19
32   12  to the right of   10
33   12  to the right of   17
34   13  to the right of   19
35   15  to the right of   19
36   15  to the right of   16
37   16   to the left of    4
38   16  to the right of   19
39   16   to the left of   15
40   17   to the left of    2
41   17   to the left of   12
42   18            below   21
43   18   to the left of    1
44   18        parked on    8
45   18            under   21
46   19   to the left of   15
47   19   to the left of   13
48   19  to the right of   11
49   19   to the left of    4
50   19  to the right of   20
51   19   to the left of   16
52   19  to the right of    1
53   19   to the left of    3
54   20   to the left of   19
55   20  to the right of   11
56   20  to the right of    1
57   20   to the left of    7
58   21   to the left of    1
59   22   to the left of    5