a-ii aaaa aaab aaai aaal aaas aaba aabb aabi aabl aabt aaib aaii aais aala aali aall aals aasa aasi aass aast aata aatt abaa abab abai abal abas abat abb- abba abbb abbi abbs abbt abia abib abil abis abit abla abls abs- absa absi absl abss abta abts aiai aias aiba aibl aiia aiib aila aili ails aisa aisb aisi aisl aist aita aiti aits aitt alaa alai alal alas alat alb- alba albi albs ali- alia alib alii alil alis alit all- alla alli alll alls alsa alst alta alti alts asaa asab asai asal asas asat asba asia asii asil asis asit asla asli assa assi assl asss asst asta astb asti astl asts at-l at-t ataa atab atai atal atas atat atbs atia atil atis atit atla atli atls atsb atsi atst atta atti atts ba-i baaa baal baas baat baba babb babi babs baia baib bail bais bait bala bali ball bals balt basa basi bass bast bata bati bats batt bbas bbbb bbbs bblb bbls bial bias biat biba bibb bibi bibl bibs biis bila bili bill bils bilt bis- bisa bisl biss bist bita bits bitt blaa blab blas blat blbt blis blit blls blss blst blts bsaa bsas bsat bsts btaa btla btss bttb iaaa iaai iaal iaas iaat iaba iaia iais iala iall ials iasa iasi iata iati ibas ibat ibia ibis ibsa ibss ibtb ibtl ibts iias iiii iiis iiit iila iisi iist iita iitt ilal ilas ilia ilis ilit ill- illa illi ills illt ilsa ilts is-a isai isal isas isat isba isbl isbt isia isil isis isit isla isls issa issi isss ista isti ists itaa itai ital itas itat itbs itia itil itis itll itsa itsi itta laaa laal laas laat laba labi labs laia lail lais lait lala lali lall lasa lasi lass last lata lati lats latt lbia lias liat liba libs liia liii liis lila lilb lili lill lils lilt lisa lisi liss list lita litb liti litl lits litt llat llbs llll lsat lsla lssa lsts ltbl ltib ltsa ltsi s-ib s-ii saab saal saas saat saba sabb sabi sabs saia sail sais sait sala sali sall sals salt sasa sasi sasl sass sast sata satb sati satl sats satt sbaa sbai sbas sbbs sbia sbsa sbsi sbst siaa siab siai sial sias siat siba sibi sibs siit sil- sila sili sill sils silt sisa sisi siss sist sit- sita siti sits sitt sl-i slaa slab slai slas slat slib slit slsa slst slts ssaa ssab ssas ssat ssis ssit ssla sslt sssa sssb sssi ssss ssta sstb sstl ssts stab stai stal stas stat stbs stia stib stil stis stit stlt stsi stss taa- taal taas taat taba tabb tabi tabl tabs taia tail tais tait tala tali tall tals tasa tasb tasi tass tast tata tatb tati tats tatt tbas tbbs tbil tbit tbst tbta tiaa tiab tial tias tiba tibi tibs tiit tila till tils tilt tisa tisb tisi tiss tist tita titi tits titt tlli tsaa tsai tsal tsat tsia tsis tssa tssi tsst tsts ttab ttbb ttss tttt