a-ak a-do a-ha a-ok aaaa aaab aaad aaah aaav aaba aabb aabd aabh aada aaha aahk aaka aaoo aava abaa abab abad abak abb- abba abbb abbo abda abdo abha abho aboa abob abod aboh abok aboo abov abva abvd adaa adab adad adah adak adao adba adda addd addo adha adhd adho adob adod adok adoo advb ahab ahad ahah ahha ahoa ahod ahok ahva akaa akah akao akha akka akko akok aoah aoba aodh avab avao avda avva avvo baaa baad baah baak baba babb babo bada badb badd badh bado baha baho bak- baka bakh bako baoh bava bbad bbbb bbdd bbdo bdav bddh bhao boab boad boak boba bobb bobo boda bodb bodh bodo boha bohd boho boka boko boob bood booh book bova bovo d-bo daab daad daba dabb dabo dada dado daha daka dako dava dddd dhaa dhad dhak dhao dhod dkba doab doak doba dobb dod- doda dodd dodo doha doka doko doob dood dook dvda dvoa haab haad haak haba habo hada hadh haha haho haka hakk hako hava hdbk hdda hdod hhaa hhhh hoad hoba hobo hoda hodh hodk hoha hoho hoka hoko hood hook hova hovk kaaa kaab kaak kaba kabb kabd kabo kad- kada kadd kado kadv kaha kaho kaka kakh kakk kako kaoa kaok kava kavb kavh kavo kavv kbaa kbab kbad kbak kbba kbbb kbbd kbbk kbbo kbdb kbdo kbdv kbhb kbhh kbkb kbkk kbko kbkv kboa kbob kbod kbok kboo kbov kbva kbvb kbvo kdaa kdab kdad kdak kdao kdav kdbb kdbv kddb kddd kddk kdka kdkb kdkd kdkk kdko kdok kdov kdva kdvb kdvv khab khad khak khao khav khbd khdk khdv khhk khho khka khkk khkv khoa khob khok khvh kkaa kkba kkbb kkbd kkbo kkda kkdd kkdo kkdv kkha kkhb kkhh kkhk kkkk kkoa kkob kkoh kkoo kkov kkvv koab koak koba kobb kobk kobo koda kodk kodo kodv koha kohd kohh koho koka kokb kokh kokk koko koob kook kooo koov kova kovk kovo kvab kvah kvak kvda kvoa kvob kvod kvoh kvok kvoo kvov kvvv obad obak obba obbo obkb obok odah odbo odda oddd odoh odoo odva ohad ohba ohho ohob ohoh ohok okak okha okka okko okok ooaa ooak ooba ooda ooha ooho oooh oooo ovda ovhd ovo- ovod ovoo vaad vada vado vaho vaka vava vhhh voad voda vodo voho voka vovk vvob vvvv