a-ya a-yo aaaa aaab aaaf aaas aaba aabb aaby aafa aafb aaff aaoo aasa aasf aass abaa abab abaf abag abas abay abb- abba abbb abbo abbs abby abff aboa abob abof aboo abos aboy abs- absa absf abss abys abyy afaa afao afbs affa affo affs affy afgf afoa afog afoo afsa afsb ag-o agag agao agas agay agba agbo agfa agga aggy agob agog agoo agos agsa agsg agya aoba aoss asaa asab asaf asag asao asas asay asba asbo asby asfa asob asof asog asos assa asso asss assy asya ay-o ayao ayas ayay ayoo ayos ayya baaa baaf baas baba babb babo babs baby baff bafo baga bagg bago bags bagy baos basa basf baso bass baya bayg bayo bays bbas bbay bbbb bbbs bbga bboy bbyo bfas bffs bfgf bggs boab boag boas boba bobb bobo bobs boby bofa boff bofs boga bogg bogo bogs bogy boob boof boog boos bosa boso boss boya boyf boyg boyo boys bsaa bsas bsfa bsff bsfs bsgs bsos byas bygg bygo byoa byob byos bysb byso byss bysy faaa faas faba fabo fabs fafa faff fafg fafo fagg fago fags fasa faso fass faya fayo fays ffff ffsa ffss foaf foba fobs fofo fogg fogo fogs fogy foof foos fosa fosb foso foss foya foys fsas fsfo fsgs fssa fssf gaas gaba gabb gabo gabs gaby gafa gafb gaff gaga gagg gago gags gaos gasa gasb gaso gass gaya gayo gays gbag gbas gbbo gbbs gffa gfoa ggfg gggg ggss goaf goas goba gobo gobs goby goff goga gogo gogs goof goog goos goso goss goya goyf goys gsab gsos gyas gyss oafo oafs oass oasy obas obay obba obbo obby obos oboy obss ofas ofay off- offa offo offs offy ofgo ogb ogba ogfy oggy ogoa ogog ooaa ooba ooby ooff oofs oofy oooo ooos oosa osaf osag osas osay osba osby osfa osoo osos ossa ossb osso ossy oyas oyss s-os saab saaf saag saas saba sabb sabo sabs safa safb saff safo saga sagg sago sags sagy saos sasa sasf saso sass saya sayo says sbaa sbas sbbs sbsa sfas sfba sfog sfos sfss sgaa sggg sggs sgss soas soay soba sobo sobs sofa sofo soga sogo sogs soof soog soos sooy sosa soso soss soya soyo soys ssaa ssab ssao ssas ssby ssgs sssa sssb sssf ssss sybo syff syfy syso syss yaaf yaas yaba yabo yafa yaff yafo yaga yago yasa yaso yass yaya yayo yays ybas ybbs yoba yobo yobs yoff yoga yogo yoof yoso yoyo ysay ysby ysyb yyff yyyy