Is the garbage brown or green?
The garbage is brown.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of    6
2     0   to the left of   12
3     0   to the left of    2
4     1   to the left of    7
5     1   to the left of    5
6     1   to the left of    9
7     1   to the left of    4
8     2  to the right of   12
9     2  to the right of    6
10    2  to the right of    3
11    2  to the right of    0
12    3   to the left of    2
13    3   to the left of    8
14    3   to the left of   12
15    3   to the left of    4
16    3   to the left of    6
17    4  to the right of    3
18    4  to the right of    1
19    4   to the left of    7
20    4  to the right of    9
21    4  to the right of    0
22    4  to the right of    6
23    5  to the right of    1
24    5   to the left of    7
25    5  to the right of   12
26    5  to the right of    9
27    5  to the right of    6
28    6   to the left of    4
29    6   to the left of    5
30    6   to the left of    7
31    6   to the left of    2
32    6   to the left of   12
33    6  to the right of    3
34    6  to the right of    0
35    7  to the right of    6
36    7  to the right of    5
37    7  to the right of    1
38    7  to the right of    4
39    7  to the right of    9
40    8  to the right of    3
41    8  to the right of   10
42    9               in   12
43    9   to the left of    5
44    9   to the left of    7
45    9  to the right of    1
46    9   to the left of    4
47   10   to the left of    8
48   12  to the right of    3
49   12   to the left of    2
50   12  to the right of    0
51   12   to the left of    5
52   12  to the right of    6