TREE           ID PARENT STRINGS
aaaa            1      0 qqqqqqqqqqqqqqqqqX
|-bbb           2      1 dddddddddddddX
| |-ee          5      2 ddddddddddddddddddddddddddX
| `-ffff        6      2 jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjX
|-ccccc         3      1 ffffffffffffffffffffffffffffffffffffffffX
| `-gggggg      7      3 mmmmmmmmmmmmmmmmmmmX
|   |-hhh       8      7 lllllllllllllllllllllllllllllllllllllX
|   | `-iiiiii  9      8 yyyyyyyyyyyyyyyyyyyyyyyyyyyyX
|   `-jj       10      7 pppppppppX
`-dddddd        4      1 ssssssssssX