a-ak a-be a-ok aaaa aaab aaae aaam aaba aabb aabm aaea aaem aaka aake aama aamb aame aamo aaoe aaoo abaa abab abae abak abam abb- abba abbb abbe abbo abee abma abmb aboa abob abok aboo aeka aeom akaa akae akam akao akee akka akko akok akom amaa amae amam amb- amba ambe ambo amee amka amm- amma amme ammo amob amok amoo aoba aoma baaa baak baam baba babb babe babm babo baek bak- baka bake bako bama bamb bame bamm bbbb bbeb beak beam beba bebb bebe bebo beeb beek beem beka beke beko bema beme beo- beok bmaa boab boak boba bobb bobe bobo boea boee boeo boka boke boko boma bomb bome boob booe book boom eaba eama eame eaom ebam ebba ebbo eboe eboo eeea eeee eeka eeke eemo eka- ekab ekam ekeb ekek ekka ekma ekoa emae emam emba embe embo emek emma emme eoka kaaa kaab kaak kaam kaba kabb kabe kabo kaeo kaka kake kakk kakm kako kam- kama kamb kame kamm kamo kaoa kaok kbaa kbab kbae kbak kbam kbba kbbb kbbe kbbk kbbm kbbo kbeb kbee kbek kbeo kbkb kbkk kbko kbmb kbme kbmo kboa kbob kboe kbok kboo kea- keak keam keba kebb kebe keek keem keka kekb keke keko kema kemb keme kemm kemo keok keom kkaa kkam kkba kkbb kkbe kkbo kkea kkkk kkma kkmk kkmo kkoa kkob kkoo kmae kmak kmam kmea kmem kmeo kmke kmkk kmko kmme kmmk kmmm kmmo kmoa kmob kmoe kmok kmom koab koae koak koba kobb kobe kobk kobo koea koka kokb koke kokk koko koma komb kome komo koob kook kooo maaa maak maam maba mabe mabo maee maem maeo maka make mako mama mame mamo mbam mbba meak mebe mebo meek meem meka meke meko mema meme memo meok mkak mmaa mmab mmea mmmm moaa moab moam moba mobb mobe mobo moea moka moke moko moma mome momo mooa moob mooe mook o-eo oake oama obak obba obbo obea obkb oboe obok oeme okak okam okka okko okmo okok okom omak omam omao ombe ombo omee omeo omma omo- omoa omoe omoo ooaa ooak ooba oobe ooma oome oooo