What color is the towel?
The towel is white.
    src        edge_attr  dst
0     0  to the right of    2
1     0   to the left of    5
2     1  to the right of    2
3     1   to the left of    5
4     2   to the left of    0
5     2   to the left of    5
6     2   to the left of    6
7     2   to the left of    1
8     5  to the right of    2
9     5  to the right of    1
10    5  to the right of    0
11    6  to the right of    2