stnn stns stoa stob ston stoo stos stot stoy stss sttc stys sybo syco syn- sync syns syny syon syso syss syst sytt taa- taan taas taat taba tabb tabc tabo tabs taby taca tacc taco tacs tact tacy tana tann tano tans tant tany taoa taos tasa tasb tasc tass tast tasy tata tatb tato tats tatt taty taya tayn tayo tays tayt tayy tbas tbbs tbca tbcb tbcc tbst tbta tcbs tcby tcca tccc tcnn tcon tcos tctc tcts tnbc tnca tncc tnts to-y toab toan toas toat toay toba tobo tobs tobt toby toca toco tona tonb tonn tono tons tony tooa toon toos toot tosa tosb tosc toso toss tost tosy tota totc toto tots tott toty toya toyb toyn toyo toys toyt tsaa tsao tsat tsbc tsca tscc tsna tsob tsos tsoy tssa tsst tstc tsts tsys ttab ttbb ttcn tton ttoy ttss tttt ttys tyan tyas tybo tyco tynt tyny tysa tyss tyst tyta tyto tytt tyty tyyn yaan yaas yaba yabo yacc yaco yacy yana yann yano yans yasa yaso yass yast yata yats yaya yayo yays ybas ybbs ycab ycao ycat yccc ycsb yctc ynca ynoa ynon ynot yoan yoba yobo yobs yona yono yons yont yoon yoot yoso yost yota yott yoyn yoyo ysay ysby ysco yson ysyb ytan ytay yyyy