snte sntr sqrt sras srcc srct srec sres srna srnn srta srtr ssaa ssac ssan ssas ssat ssca sscc ssce sscs ssec ssee sses sset ssns ssra ssrc ssrs sssa sssc ssss ssta sstc ssts stac stae stan star stas stat stca stcc stcs stea stec stee sten ster stes stet stnn stnr stns stra strc stre strn strs stss sttc sttr taa- taan taar taas taat taca tacc tace tacs tact taec taen taer taes tana tane tann tans tant taqa tara tarc tare tarn tarq tarr tars tart tasa tasc tase tasr tass tast tata tate tatr tats tatt tcca tccc tcnn tctc tcts teac tean tear teas teat teca tecr tecs tect teec teen teer tees teet tena tenc tene tenn tens tent ter- tera terc tere tern terr ters tesa tesc tese tess test teta tete tetr tets tett tnca tncc tnes tnts traa trac trae tran tras trat trca trcc tre- trea trec tree tren tres tret trna trra trst trtc trte trtr tsaa tsar tsat tsca tscc tsec tsen tses tset tsna tssa tsse tssr tsst tstc tsts ttcn tten tter ttss tttt