How clean is this toilet?
The toilet is clean.
    src        edge_attr  dst
0     0   to the left of    3
1     0   to the left of    1
2     0   to the left of    8
3     0   to the left of    5
4     1   to the left of    3
5     1  to the right of    0
6     3  to the right of    1
7     3  to the right of    0
8     4   to the left of    5
9     5  to the right of    0
10    5  to the right of    7
11    5  to the right of    4
12    6   to the left of    9
13    7   to the left of    5
14    7   to the left of    8
15    8  to the right of    0
16    8  to the right of    7
17    8  to the right of    9
18    9   to the left of    8
19    9  to the right of    6