a-ak a-ok aaaa aaab aaas aaba aabb aaka aaoo aasa aass abaa abab abag abak abas abb- abba abbb abbo abbs aboa abob abok aboo abos abs- absa abss ag-o agag agao agas agba agbo agga agob agog agoo agos agsa agsg akaa akao akas akka akko akok akos aksa aoba aoks aoss asaa asab asag asak asao asas asba asbo aska asko asks asob asog asok asos assa assk asso asss baaa baak baas baba babb babo babs baga bagg bago bags bak- baka bako baks baos basa bask baso bass bbas bbbb bbbs bbga bggs boab boag boak boas boba bobb bobo bobs boga bogg bogo bogs boka boko boks boob boog book boos bosa bosk boso boss bsaa bsas bsgs bsos gaas gaba gabb gabo gabs gaga gagg gago gags gaos gasa gasb gask gaso gass gbag gbas gbbo gbbs gggg ggss goas goba gobo gobs goga gogo gogs goog gook goos goso goss gsab gskb gsos k-os kaaa kaab kaag kaak kaas kaba kabb kabg kabo kag- kaga kagb kagg kago kags kaka kakk kako kaks kaoa kaog kaok kaos kas- kasa kasb kask kaso kass kbaa kbab kbak kbas kbba kbbb kbbg kbbk kbbo kbbs kbga kbgb kbgg kbgo kbkb kbkg kbkk kbko kboa kbob kbok kboo kbos kbsa kbsb kbsg kbsk kbso kbss kgab kgak kgas kgba kgbb kgga kggg kggo kgks kgos kgso kkaa kkag kkba kkbb kkbg kkbo kkbs kkgb kkgo kkkk kkoa kkob kkoo kksa kkss koab koak koas koba kobb kobk kobo kobs koga kogb kogg kogo koka kokb kokk koko koks koob koog kook kooo koos kos- kosa kosb kosg koso koss ksab ksak ksas ksba ksbs ksgg kska kskb kskg kskk ksko ksks ksob ksok ksoo ksos kssa ksso ksss oaks oass obak obas obba obbo obkb obok obos obss ogb ogba ogoa ogog okak okas okgo okka okko okok oksa okso ooaa ooak ooba oooo ooos oosa osag osak osas osba osoo osos ossa ossb osso s-os saab saag saak saas saba sabb sabo sabs saga sagg sago sags saka sakb sakk sako saks saos sasa sask saso sass sbaa sbas sbbs sbsa sgaa sggg sggs sgss skab skag skog skss soak soas soba sobo sobs soga sogo sogs soka sokk soko soog sook soos sosa soso soss ssaa ssab ssao ssas ssgs sssa sssb ssss