-ana a-ii aaaa aaab aaai aaan aaas aaba aabb aabi aabt aaib aaii aain aais aana aani aasa aasi aass aast aata aatt abaa abab abai aban abas abat abb- abba abbb abbi abbs abbt abia abib abin abis abit abs- absa absi abss abta abts aiai aian aias aiba aibn aiia aiib aiin aina aini ains aint aisa aisb aisi aist aita aiti aits aitt ana- anaa anab anai anan anas anat anba anbb anbi ania anib anin anis anit anna annb anni anns annt ansa ansi ant- anta anti ants antt asaa asab asai asan asas asat asba asia asii asin asis asit asni assa assi assn asss asst asta astb asti asts at-t ataa atab atai atan atas atat atbs atia atin atis atit atna atns atsb atsi atst atta atti attn atts ba-i baaa baan baas baat baba babb babi babs baia baib bain bais bait bana bani bann bans bant basa basi bass bast bata bati batn bats batt bbas bbbb bbbs bbin bian bias biat biba bibb bibi bibs biin biis bin- bina bini binn bins bint bis- bisa biss bist bita bits bitt bnai bnas bnib bnin bnss bnta bsaa bsas bsat bsin bsns bsts btaa btan btss bttb iaaa iaai iaas iaat iaba iaia iain iais iana ians iasa iasi iata iati iban ibas ibat ibia ibis ibns ibsa ibsn ibss ibtb ibts iias iiii iiis iiit iisi iist iita iitt inab inai inan inas inat inba inia inis init inna inni inns insa inss inst inta inti intn ints is-a isai isan isas isat isba isbn isbt isia isin isis isit isna isnt issa issi isss ista isti ists itaa itai itan itas itat itbs itia itin itis itsa itsi itta n-ii naaa naab naai naan naas naat naba nabi nabs naia naib nain nais nait nan- nana nanb nani nann nans nant nas- nasa nasb nasi nass nast nata nati nats natt nbaa nbas nbia nbti niab nian nias nibi nibs niia niit nina nini nins nisa nisi niss nist nita nitb niti nits nnit nnnn nnsa nnss nntn nsaa nsai nsin nsis nsna nssa nssb nsss nsts ntia ntis ntsb ntss s-ib s-ii saab saan saas saat saba sabb sabi sabs saia sain sais sait sana sani sann sans sant sasa sasi sass sast sata satb sati satn sats satt sbaa sbai sbas sbbs sbia sbsa sbsi sbst sbtn siaa siab siai sian sias siat siba sibi sibs siit sina sini sinn sins sint sisa sisi siss sist sit- sita siti sitn sits sitt snab snas snat snba snia snib snit snns ssaa ssab ssan ssas ssat ssbn ssin ssis ssit ssns sssa sssb sssi ssss ssta sstb ssts stab stai stan stas stat stbs stia stib stis stit stnn stns stsi stss taa- taan taas taat taba tabb tabi tabs taia tain tais tait tana tani tann tans tant tasa tasb tasi tass tast tata tatb tati tats tatt tbas tbbs tbit tbst tbta tiaa tiab tian tias tiba tibi tibs tiit tina tini tinn tins tint tisa tisb tisi tiss tist tita titi tits titt tnts tsaa tsai tsat tsia tsin tsis tsna tssa tssi tsst tsts ttab ttbb ttss tttt