sft sla slc sld sle slf sll sln slr sls slt sly sna snc snd sne snf snl snn snr sns snt sny sr- sra src srd sre srf srl srn srr srs srt sry ss- ssa ssc ssd sse ssf ssl ssn ssr sss sst sta stc std ste stf stl stn str sts stt sty sy- sya syc syd sye syl syn syr sys syt taa tac tad tae taf tal tan tar tas tat tay tca tcc tcd tce tcf tcl tcn tcr tcs tct tda tdc tdd tde tdf tdl tdn tdr tds tdt tdy te- tea tec ted tee tef tel ten ter tes tet tey tfa tfc tfd tfe tff tfl tfn tfr tfs tft tla tlc tld tle tlf tll tln tlr tls tlt tna tnc tnd tne tnf tnl tnn tnr tns tnt tra trc trd tre trf trl trn trr trs trt try tsa tsc tsd tse tsf tsl tsn tsr tss tst tsy tta ttc ttd tte ttf ttl ttn ttr tts ttt tty tya tyc tyd tye tyf tyl tyn tyr tys tyt yaa yac yad yae yaf yal yan yar yas yat yay yca ycc ycd yce ycf ycl ycs ycy yda yde ydl ydn yds ydt ydy yea yec yed yee yef yel yen yer yes yet yey yfa yfc yfd yfe yff yfr yfs yft ylc yld yle yll ylr yls ylt yly yna ynd yne ynn yns yny yra yrc yre yrf yrn yrs yrt ysa ysc yse ysl ysr yss yst ysy yta ytc ytd yte ytf ytl ytn ytr yts ytt yyc yye yyf yys yyt yyy