ses set sey sla slc sld sle sll sln slo slr sls slt sly sna snc snd sne snl snn sno snr sns snt sny soa soc sod soe sol son soo sor sos sot soy sr- sra src srd sre srl srn sro srr srs srt sry ss- ssa ssc ssd sse ssl ssn sso ssr sss sst sta stc std ste stl stn sto str sts stt sty sy- sya syc syd sye syl syn syr sys syt taa tac tad tae tal tan tao tar tas tat tay tca tcc tcd tce tcl tcn tco tcr tcs tct tda tdc tdd tde tdl tdn tdo tdr tds tdt tdy te- tea tec ted tee tel ten teo ter tes tet tey tla tlc tld tle tll tln tlo tlr tls tlt tna tnc tnd tne tnl tnn tno tnr tns tnt to- toa toc tod toe tol ton too tor tos tot toy tra trc trd tre trl trn tro trr trs trt try tsa tsc tsd tse tsl tsn tso tsr tss tst tsy tta ttc ttd tte ttl ttn tto ttr tts ttt tty tya tyc tyd tye tyl tyn tyo tyr tys tyt yaa yac yad yae yal yan yao yar yas yat yay yca ycc ycd yce ycl yco ycs ycy yda yde ydl ydn ydo yds ydt ydy yea yec yed yee yel yen yeo yer yes yet yey ylc yld yle yll ylr yls ylt yly yna ynd yne ynn yns yny yoc yod yoe yol yon yoo yor yos yot yoy yra yrc yre yrn yro yrs yrt ysa ysc yse ysl yso ysr yss yst ysy yta ytc ytd yte ytl ytn yto ytr yts ytt yyc yye yys yyt yyy