a-ak a-be a-ha aaaa aaab aaae aaah aaba aabb aabh aaea aaha aahk aaka aake abaa abab abae abak abb- abba abbb abbe abee abha aeka ahab ahah ahha akaa akae akah akee akha akka baaa baah baak baba babb babe baek baha bak- baka bake bakh bbbb bbeb beah beak beba bebb bebe beeb beek beka beke eaba eabh ebba eeea eeee eeka eeke ehaa ehea eheh eka- ekab ekeb ekek ekka haab haak haba habe haha haka hake hakk heah hebb hebe heeb heek hehe heka heke hhaa hhhh kaaa kaab kaak kaba kabb kabe kaeh kaha kahe kaka kake kakh kakk kbaa kbab kbae kbak kbba kbbb kbbe kbbk kbeb kbee kbeh kbek kbhb kbhe kbhh kbkb kbkk kea- keak keba kebb kebe keeh keek kehk keka kekb keke khab khak kheb khhk khka khke khkk kkaa kkba kkbb kkbe kkea kkha kkhb kkhh kkhk kkkk