Which color is the crate?
The crate is green.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of    1
2     0               of   10
3     1   to the left of    2
4     1   to the left of    3
5     1   to the left of    7
6     1   to the left of    5
7     1   to the left of    0
8     2  to the right of    1
9     2  to the right of    7
10    3  to the right of    8
11    3  to the right of    4
12    3  to the right of   12
13    3  to the right of    9
14    3  to the right of    1
15    4   to the left of    3
16    5  to the right of    1
17    5  to the right of    8
18    7   to the left of    2
19    7   to the left of   11
20    7  to the right of    1
21    7  to the right of    8
22    8   to the left of   10
23    8   to the left of    7
24    8   to the left of    5
25    8   to the left of    3
26    9   to the left of    3
27   10  to the right of    8
28   11  to the right of    7
29   11  to the right of    0
30   12   to the left of    3