a-ak a-be a-ha aaaa aaab aaad aaae aaah aaba aabb aabd aabh aada aade aaea aaha aahk aaka aake abaa abab abad abae abak abb- abba abbb abbe abda abed abee abha adaa adab adad adae adah adak adba adda addd adde adea adeb adee adeh adha adhd aede aeka ahab ahad ahah ahed ahha akaa akae akah aked akee akha akka baaa baad baah baak baba babb babe bada badb badd bade badh baed baek baha bak- baka bake bakh bbad bbbb bbdd bbeb bddh bead beah beak beba bebb bebe beda bede beeb beed beek beka beke daab daad daae daba dabb dada dade daeb daha dahe daka dake dddd dead deae deak deba debe deda dedd dede deeb deed deek deha dek- deka deke dekh dhaa dhad dhak dhed dhee dkba eaba eabh eada eadb eadd ebba ebed edad edah edda edde ede- edea edeh eede eeea eeee eeka eeke ehaa ehdd ehea eheh eka- ekab ekeb eked ekek ekka haab haad haak haba habe hada hade hadh haed haha haka hake hakk hdbk hdda head heah hebb hebe heda hedd hede heeb heed heek hehe heka heke hhaa hhhh kaaa kaab kaak kaba kabb kabd kabe kad- kada kadd kade kaeh kaha kahe kaka kake kakh kakk kbaa kbab kbad kbae kbak kbba kbbb kbbd kbbe kbbk kbdb kbde kbeb kbed kbee kbeh kbek kbhb kbhe kbhh kbkb kbkk kdaa kdab kdad kdae kdak kdbb kddb kddd kddk kdeb kdka kdkb kdkd kdkk kea- kead keak keba kebb kebe keda kedb kedd kede keed keeh keek kehk keka kekb keke khab khad khak khbd khdk kheb khed khhk khka khke khkk kkaa kkba kkbb kkbd kkbe kkda kkdd kkea kked kkha kkhb kkhh kkhk kkkk