What color is the graffiti on the sign?
The graffiti is yellow.
    src        edge_attr  dst
0     0               on    2
1     0   to the left of    7
2     0  to the right of    1
3     0   to the left of   11
4     1               on    2
5     1   to the left of   11
6     1   to the left of    0
7     1   to the left of    7
8     2            below    9
9     2   to the left of    7
10    2  to the right of   10
11    3  to the right of    6
12    3               on    9
13    4  to the right of    5
14    4               on    9
15    5   to the left of    4
16    6           behind    9
17    6   to the left of    3
18    7          next to    8
19    7           behind    9
20    7             near    8
21    7  to the right of    2
22    7  to the right of   11
23    7  to the right of    0
24    7  to the right of    1
25    7  to the right of    8
26    8   to the left of    7
27    8             near    7
28    9        on top of    8
29    9      in front of    7
30    9               on    8
31    9      in front of    6
32   10   to the left of    2
33   11  to the right of    1
34   11               on    2
35   11  to the right of    0
36   11               on    9
37   11   to the left of    7