a-ii aaaa aaab aaai aaas aaba aabb aabi aabt aaib aaii aais aasa aasi aass aast aata aatt abaa abab abag abai abas abat abb- abba abbb abbi abbs abbt abia abib abig abis abit abs- absa absi abss abta abts agag agai agas agat agba agga aggi agia agib agig agii agis agit agsa agsg agst agta agts aiai aias aiba aiga aiia aiib aisa aisb aisg aisi aist aita aiti aits aitt asaa asab asag asai asas asat asba asgt asia asii asis asit assa assi asss asst asta astb asti asts at-t ataa atab atai atas atat atbs atia atis atit atsb atsi atst atta atti atts ba-i baaa baas baat baba babb babi babs baga bagg bagi bags bagt baia baib baig bais bait basa basi bass bast bata bati bats batt bbas bbbb bbbs bbga bggs bgia bgst bias biat biba bibb bibi bibs biga bigb bigg bigs bigt biis bis- bisa biss bist bita bits bitt bsaa bsas bsat bsgs bsts btaa btss bttb gaas gaba gabb gabi gabs gabt gaga gagg gagi gags gaia gaig gais gait gasa gasb gasi gass gast gata gati gats gatt gbag gbas gbbs ggbt gggg ggss giaa giai gias giat giba gibb gibs giga gigg gigi gigs giis gisa giss gist gita gits gsab gsat gsis gtaa gtta iaaa iaai iaas iaat iaba iags iaia iais iasa iasi iata iati ibas ibat ibga ibia ibis ibsa ibss ibtb ibts igas igba igga iggs igia igis iias iiii iiis iiit iisi iist iita iitt is-a isai isas isat isba isbt isia isis isit issa issi isss ista isti ists itaa itai itas itat itbs itgs itia itis itsa itsi itta s-ib s-ii saab saag saas saat saba sabb sabi sabs saga sagg sagi sags sagt saia sais sait sasa sasi sass sast sata satb satg sati sats satt sbaa sbai sbas sbbs sbia sbig sbsa sbsi sbst sgaa sggg sggs sgss sgta sgts siaa siab siag siai sias siat siba sibi sibs siga sigg sigi sigs siit sisa sisi siss sist sit- sita siti sits sitt ssaa ssab ssas ssat ssgs ssgt ssis ssit sssa sssb sssi ssss ssta sstb ssts stab stag stai stas stat stbs stia stib stig stis stit stsi stss taa- taag taas taat taba tabb tabi tabs taga tagg tagi tags taia taig tais tait tasa tasb tasi tass tast tata tatb tati tats tatt tbas tbbs tbgs tbit tbst tbta tgts tiaa tiab tias tiba tibi tibs tiga tigi tigs tiit tisa tisb tisi tiss tist tita titi tits titt tsaa tsai tsat tsgt tsia tsig tsis tssa tssg tssi tsst tsts ttab ttbb ttss tttt