Is the color of the sign the same as the lamp?
No, the sign is yellow and the lamp is blue.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    2
2     0  to the right of    5
3     2   to the left of    3
4     2  to the right of    0
5     2  to the right of    5
6     2  to the right of    4
7     2  to the right of   11
8     3  to the right of    2
9     3  to the right of    0
10    3  to the right of    4
11    4           eating    5
12    4   to the left of    3
13    4   to the left of    2
14    4   to the left of    8
15    4   to the left of    7
16    4   to the left of   10
17    5   to the left of    0
18    5   to the left of    2
19    5   to the left of    7
20    5   to the left of   11
21    6   to the left of    8
22    7  to the right of    4
23    7  to the right of    5
24    8               on    7
25    8  to the right of    4
26    8  to the right of    6
27   10  to the right of   12
28   10  to the right of    4
29   11   to the left of    2
30   11  to the right of    5
31   12   to the left of   10