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    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    5
2     0  to the right of    6
3     0   to the left of    7
4     0  to the right of    2
5     0             with    8
6     1     reflected in   10
7     2   to the left of    8
8     2   to the left of    0
9     3     reflected in   10
10    4   to the left of    0
11    4   to the left of    7
12    5   to the left of    0
13    6   to the left of    0
14    6     reflected in   10
15    6   to the left of    7
16    7  to the right of    6
17    7  to the right of    8
18    7  to the right of    4
19    7  to the right of   10
20    7  to the right of    0
21    7  to the right of    9
22    8               in    0
23    8  to the right of    2
24    8   to the left of    7
25    9   to the left of    7
26   10   to the left of    7