Is this a donut or a pizza?
This is a donut.
    src        edge_attr  dst
0     0   to the left of    3
1     0  to the right of    1
2     1   to the left of    2
3     1   to the left of    5
4     1   to the left of    4
5     1   to the left of    7
6     1   to the left of    6
7     1   to the left of    9
8     1   to the left of    8
9     1   to the left of    0
10    2   to the left of    3
11    2               on    4
12    2   to the left of    9
13    2   to the left of    8
14    2  to the right of    1
15    3  to the right of    9
16    3               on    4
17    3  to the right of    0
18    3  to the right of    2
19    3  to the right of    7
20    3  to the right of    8
21    4  to the right of    1
22    5  to the right of    1
23    6  to the right of    1
24    7   to the left of    3
25    7  to the right of    1
26    8   to the left of    3
27    8  to the right of    2
28    8  to the right of    1
29    9  to the right of    1
30    9   to the left of    3
31    9  to the right of    2