sor sos sot soy spa spc spg spi spn spo spp spr sps spt spy sr- sra src srg sri srn sro srp srr srs srt sry ss- ssa ssc ssg ssi ssn sso ssp ssr sss sst sta stc stg sti stn sto stp str sts stt sty sy- sya syc syg syi syn syp syr sys syt taa tac tag tai tan tao tap tar tas tat tay tca tcc tcg tci tcn tco tcp tcr tcs tct tga tgc tgg tgi tgn tgo tgp tgr tgs tgt tgy tia tic tig tii tin tio tip tir tis tit tiy tna tnc tng tni tnn tno tnp tnr tns tnt to- toa toc tog toi ton too top tor tos tot toy tpa tpc tpg tpi tpn tpo tpp tpr tps tpt tra trc trg tri trn tro trp trr trs trt try tsa tsc tsg tsi tsn tso tsp tsr tss tst tsy tta ttc ttg tti ttn tto ttp ttr tts ttt tty tya tyc tyg tyn tyo typ tyr tys tyt yaa yac yag yai yan yao yap yar yas yat yay yca ycc yci yco ycp ycs ycy yga ygc ygo yig yii yin yio yip yir yis yit yna yng ynn ynp yns yny yoc yog yoi yon yoo yop yor yos yot yoy ypa ypg ypo yps yra yrc yrg yrn yro yrp yrs yrt ysa ysc ysg ysi yso ysp ysr yss yst ysy yta ytc ytn yto ytp ytr yts ytt yyc yyg yys yyt yyy