| 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 |