a-ii aaaa aaaf aaai aaas aafa aaff aafi aaii aais aasa aasf aasi aass aast aata aatf aatt afaa afat affa affi affs afft afia afif afis afit afix afsa afst afta afts aiai aias aiff aifs aiia aisa aisi aist aita aitf aiti aits aitt aixa aixi asaa asaf asai asas asat asfa asfi asia asif asii asis asit asix assa assi asss asst asta asti asts at-t at-x ataa atai atas atat atax atfs atia atif atis atit atsi atst atta atti atts axaf axat axfs axi- axia axis faaa faas fafa faff fafi fais fait faix fasa fasi fass fast fata fatf fati fats fatt faxi ffff ffii ffsa ffss fftf fiaa fiaf fias fiat fifa fiff fifi fift fiii fisa fisi fiss fist fita fiti fits fitt fixt fixx fsai fsas fsfi fsia fsix fssa fssf fsta ftii ftsa iaaa iaai iaas iaat iaff iaia iais iasa iasi iata iati ifaa ifas ifat ifis ifit ifsa ifta iias iifa iiii iiis iiit iisi iist iita iitt is-a isaf isai isas isat isfa isia isis isit issa issf issi isss ista isti ists itaa itaf itai itas itat itfa itia itif itis itsa itsf itsi itta ittf ixia ixxi s-ii sa-x saaf saas saat safa saff safi saft saia saif sais sait saix sasa sasf sasi sass sast sata sati sats satt saxa saxi saxt sfas sfax sfia sfss sfts siaa siaf siai sias siat sifa siff sift siit sisa sisi siss sist sit- sita siti sits sitt sixa sixt sixx ssaa ssas ssat ssis ssit sssa sssf sssi ssss ssta ssts stai stas stat stax stia stif stis stit stix stsf stsi stss taa- taaf taas taat tafa taff tafi taft taia tais tait taix tasa tasi tass tast tata tati tats tatt tax- taxa taxf taxi taxt tfsi tfss tiaa tiaf tias tiax tifa tiff tift tiit tisa tisi tiss tist tita titi tits titt tixt tsaa tsai tsat tsia tsis tsix tssa tssf tssi tsst tsts ttfa ttff ttss tttt txaa txii x-fi xait xats xiii xisi xist xita xixi xxii xxix xxxi xxxx