-ana a-ak a-ok aaaa aaab aaan aaas aaba aabb aaka aana aaon aaoo aasa aass abaa abab abak aban abas abb- abba abbb abbo abbs aboa abob abok abon aboo abos abs- absa abss akaa akan akao akas akka akko akna akok akon akos aksa ana- anaa anab anak anan anao anas anba anbb anbo ank- anka anko anna annb anno anns ano- anoa anon anos ansa anso aoba aoks aonb aono aoss asaa asab asak asan asao asas asba asbo aska asko asks asno asob asok ason asos assa assk assn asso asss baaa baak baan baas baba babb babo babs bak- baka bako baks bana bank bann bano bans baon baos basa bask baso bass bbas bbbb bbbs bnas bnss boab boak boan boas boba bobb bobo bobs boka bokn boko boks bona bonk bonn bono bons boob book boon boos bosa bosk bosn boso boss bsaa bsas bsns bson bsos k-os kaaa kaab kaak kaan kaas kaba kabb kabo kaka kakk kakn kako kaks kana kanb kann kano kans kaoa kaok kaon kaos kas- kasa kasb kask kasn kaso kass kbaa kbab kbak kbas kbba kbbb kbbk kbbo kbbs kbkb kbkk kbko kbna kbnn kbno kboa kbob kbok kbon kboo kbos kbsa kbsb kbsk kbsn kbso kbss kkaa kkan kkba kkbb kkbn kkbo kkbs kkkk kknb kknn kkno kkns kkoa kkob kkon kkoo kksa kksn kkss knaa knab knan knas knba knbb knbn knkk knnb knnk knns knob knok knon knsa knsb knsk knsn knso knss koab koak koan koas koba kobb kobk kobn kobo kobs koka kokb kokk kokn koko koks kona konk kono koob kook koon kooo koos kos- kosa kosb koso koss ksab ksak ksan ksas ksba ksbn ksbs kska kskb kskk kskn ksko ksks ksna ksnb ksnk ksnn ksns ksob ksok kson ksoo ksos kssa kssn ksso ksss naaa naab naan naas naba nabk nabo nabs naka nako naks nan- nana nanb nann nano nans naos nas- nasa nasb nask naso nass nbaa nbak nbas nbbo nkok nnnn nnos nnsa nnss noaa noak noba nobo nobs noko non- nona nonn nono nons noo- noob nook noon nooo noos nos- nosa nosk noss nsaa nsbo nskk nsna nsok nsos nssa nssb nsso nsss oaks oass obak oban obas obba obbo obkb obok obon obos obsn obss okak okan okas okka okko okna okno okok okon oksa okso onab onan onas onna onno onon onos onso ooaa ooak ooba oona oons oooo ooos oosa osak osan osas osba osno osoo osos ossa ossb osso s-os saab saak saan saas saba sabb sabo sabs saka sakb sakk sako saks sana sank sann sano sans saon saos sasa sask saso sass sbaa sbas sbbs sbsa skab skan skn- skon skss snab snak snas snba snns snoa snob snoo snos soak soan soas soba sobo sobs soka sokk sokn soko son- sona sonk sono sons sook soon soos sosa soso soss ssaa ssab ssan ssao ssas ssbn ssns sssa sssb ssss