a-ak a-ok aaaa aaab aaam aaap aaba aabb aabm aabp aaka aama aamb aamo aamp aaoo aapa aapm aapo abaa abab abak abam abap abb- abba abbb abbo abma abmb aboa abob abok aboo abpa abpm abpp akaa akam akao akap akka akko akok akom akpo amaa amam amap amb- amba ambo amka amm- amma ammo amob amok amoo ampa ampk ampm ampo aoba aokp aoma aopo apak apam apao apap apba apma apo- apom apoo apop appa baaa baak baam baba babb babm babo bak- baka bako bama bamb bamm bamp bapa bapp bbbb bmaa bmop boab boak boba bobb bobo boka boko boma bomb bomp boob book boom boop bopa bopp kaaa kaab kaak kaam kaap kaba kabb kabo kaka kakk kakm kako kam- kama kamb kamm kamo kamp kaoa kaok kap- kapa kapo kapp kbaa kbab kbak kbam kbap kbba kbbb kbbk kbbm kbbo kbkb kbkk kbko kbmb kbmo kbmp kboa kbob kbok kboo kbpa kbpk kbpo kkaa kkam kkap kkba kkbb kkbo kkkk kkma kkmk kkmo kkmp kkoa kkob kkoo kkpk kmak kmam kmap kmkk kmko kmmk kmmm kmmo kmoa kmob kmok kmom kmpa kmpb kmpo koab koak koap koba kobb kobk kobo koka kokb kokk koko kokp koma komb komo komp koob kook kooo koop kopa kopb kopp kpak kpam kpao kpba kpbb kpbm kpkk kpmb kpmo kpmp kpoa kpob kpok kpoo kpop kppk kppo kppp maaa maak maam maap maba mabo maka mako mama mamo mamp mapa mapo mapp mbam mbba mkak mmaa mmab mmap mmmm mmpa moaa moab moam moap moba mobb mobo moka moko moma momo mooa moob mook moop mopa mopp mpaa mpao mppp oama oamp obak obba obbo obkb obok okak okam okap okka okko okmo okok okom okpo omak omam omao omap ombo omma omo- omoa omoo ompa ooaa ooak ooba ooma oooo opap opo- oppa oppo paak paap paba paka pako pam- pama pamb pamm pamo pamp papa papb papp pbpa pbpk pmaa pmma pmmp pmpm pmpo poak poba pobo poka poko poma pomo pomp pook poop pop- popa popo popp ppap ppoa pppa pppo pppp