Does the street light have a different color than the frame?
Yes, the frame is red and the street light is black.
    src        edge_attr  dst
0     0   to the left of    6
1     0   to the left of   18
2     0   to the left of   11
3     0   to the left of   16
4     1            below    8
5     1   to the left of    9
6     1  to the right of   10
7     1   to the left of   11
8     1  to the right of   15
9     1  to the right of    7
10    3   to the left of   11
11    3  to the right of   14
12    3   to the left of    9
13    5  to the right of   14
14    5  to the right of   10
15    5   to the left of    9
16    6  to the right of    0
17    6  to the right of   18
18    7   to the left of    1
19    7   to the left of   14
20    8  to the right of   10
21    8            above    1
22    9  to the right of    3
23    9  to the right of    5
24    9  to the right of    1
25    9  to the right of   13
26    9  to the right of   12
27   10   to the left of    1
28   10   to the left of    5
29   10   to the left of   12
30   10   to the left of   13
31   10   to the left of    8
32   10   to the left of   14
33   11  to the right of    1
34   11  to the right of    3
35   11  to the right of    0
36   12   to the left of    9
37   12  to the right of   10
38   13  to the right of   14
39   13   to the left of    9
40   13  to the right of   10
41   14  to the right of    7
42   14   to the left of    5
43   14  to the right of   10
44   14   to the left of    3
45   14   to the left of   13
46   15   to the left of    1
47   16  to the right of    0
48   18           beside    2
49   18   to the left of    6
50   18  to the right of    0