src srf srg sri srn sro srr srs srt sry ss- ssa ssc ssf ssg ssi ssn sso ssr sss sst sta stc stf stg sti stn sto str sts stt sty sy- sya syc syg syi syn syr sys syt taa tac taf tag tai tan tao tar tas tat tay tca tcc tcf tcg tci tcn tco tcr tcs tct tfa tfc tff tfg tfi tfn tfo tfr tfs tft tga tgc tgf tgg tgi tgn tgo tgr tgs tgt tgy tia tic tif tig tii tin tio tir tis tit tiy tna tnc tnf tng tni tnn tno tnr tns tnt to- toa toc tof tog toi ton too tor tos tot toy tra trc trf trg tri trn tro trr trs trt try tsa tsc tsf tsg tsi tsn tso tsr tss tst tsy tta ttc ttf ttg tti ttn tto ttr tts ttt tty tya tyc tyf tyg tyn tyo tyr tys tyt yaa yac yaf yag yai yan yao yar yas yat yay yca ycc ycf yci yco ycs ycy yfa yfc yff yfr yfs yft yga ygc ygo yif yig yii yin yio yir yis yit yna yng ynn yns yny yoc yof yog yoi yon yoo yor yos yot yoy yra yrc yrf yrg yrn yro yrs yrt ysa ysc ysg ysi yso ysr yss yst ysy yta ytc ytf ytn yto ytr yts ytt yyc yyf yyg yys yyt yyy