What color is the candle?
The candle is green.
    src        edge_attr  dst
0     0               on    9
1     0        on top of    9
2     0   to the left of    2
3     2  to the right of    4
4     2               on    9
5     2   to the left of    3
6     2  to the right of    0
7     2  to the right of    6
8     3  to the right of    2
9     3               on    9
10    4   to the left of    2
11    5               in    0
12    5  to the right of    8
13    6   to the left of    2
14    7  to the right of    8
15    7          hung on    8
16    7               on    8
17    8   to the left of    7
18    8   to the left of    5
19    8   to the left of   12
20   11  to the right of   12
21   12   to the left of   11
22   12  to the right of    8