-ana aaaa aaab aaan aaas aaba aabb aabt aana aang aasa aass aast aata aatt abaa abab abag aban abas abat abb- abba abbb abbs abbt abs- absa abss abta abts agag agan agas agat agba agga agna agns agsa agsg agst agta agts ana- anaa anab anag anan anas anat anba anbb ang- anga angs anna annb anns annt ansa ant- anta ants antt asaa asab asag asan asas asat asba asgt assa assn asss asst asta astb asts at-t ataa atab atan atas atat atbs atna atns atsb atst atta attn atts baaa baan baas baat baba babb babs baga bagg bagn bags bagt bana bang bann bans bant basa bass bast bata batn bats batt bbas bbbb bbbs bbga bbng bgan bggs bgst bnas bnss bnta bsaa bsas bsat bsgs bsns bsts btaa btan btss bttb gaas gaba gabb gabs gabt gaga gagg gags gana gang gann gans gant gasa gasb gass gast gata gats gatt gbag gban gbas gbbs ggbt gggg ggss gnaa gnas gnat gsab gsat gtaa gtta naaa naab naag naan naas naat naba nabs naga nags nan- nana nanb nang nann nans nant nas- nasa nasb nass nast nata nats natt nbaa nbas ngab ngan ngas ngns ngsn ngtn ngts nngn nnnn nnsa nnss nntn nsaa nsna nssa nssb nsss nsts ntsb ntss saab saag saan saas saat saba sabb sabs saga sagg sags sagt sana sang sann sans sant sasa sass sast sata satb satg satn sats satt sbaa sbas sbbs sbsa sbst sbtn sgaa sggg sggs sgss sgta sgts snab snag snas snat snba snns ssaa ssab ssan ssas ssat ssbn ssgs ssgt ssns sssa sssb ssss ssta sstb ssts stab stag stan stas stat stbs stng stnn stns stss taa- taag taan taas taat taba tabb tabs taga tagg tags tana tang tann tans tant tasa tasb tass tast tata tatb tats tatt tbas tbbs tbgs tbst tbta tgts tnag tngs tnts tsaa tsat tsgt tsna tssa tssg tsst tsts ttab ttbb ttss tttt