slr sls slt sly sna snc snd sni snl snn snp snr sns snt sny spa spc spd spi spl spn spp spr sps spt spy sr- sra src srd sri srl srn srp srr srs srt sry ss- ssa ssc ssd ssi ssl ssn ssp ssr sss sst sta stc std sti stl stn stp str sts stt sty sy- sya syc syd syi syl syn syp syr sys syt taa tac tad tai tal tan tap tar tas tat tay tca tcc tcd tci tcl tcn tcp tcr tcs tct tda tdc tdd tdi tdl tdn tdp tdr tds tdt tdy tia tic tid tii til tin tip tir tis tit tiy tla tlc tld tli tll tln tlp tlr tls tlt tna tnc tnd tni tnl tnn tnp tnr tns tnt tpa tpc tpd tpi tpl tpn tpp tpr tps tpt tra trc trd tri trl trn trp trr trs trt try tsa tsc tsd tsi tsl tsn tsp tsr tss tst tsy tta ttc ttd tti ttl ttn ttp ttr tts ttt tty tya tyc tyd tyl tyn typ tyr tys tyt yaa yac yad yai yal yan yap yar yas yat yay yca ycc ycd yci ycl ycp ycs ycy yda ydl ydn yds ydt ydy yid yii yin yip yir yis yit ylc yld yli yll ylr yls ylt yly yna ynd ynn ynp yns yny ypa ypd ypl yps yra yrc yrn yrp yrs yrt ysa ysc ysi ysl ysp ysr yss yst ysy yta ytc ytd ytl ytn ytp ytr yts ytt yyc yys yyt yyy