sor sos sot soy sr- src srd sre srf srh srm sro srr srs srt sry ss- ssc ssd sse ssf ssh ssm sso ssr sss sst stc std ste stf sth stm sto str sts stt sty sy- syc syd sye syh sym syr sys syt tcc tcd tce tcf tch tcm tco tcr tcs tct tdc tdd tde tdf tdh tdm tdo tdr tds tdt tdy te- tec ted tee tef teh tem teo ter tes tet tey tfc tfd tfe tff tfh tfm tfo tfr tfs tft th- thc thd the thf thh thm tho thr ths tht thy tmc tmd tme tmf tmh tmm tmo tmr tms tmt tmy to- toc tod toe tof toh tom too tor tos tot toy trc trd tre trf trh trm tro trr trs trt try tsc tsd tse tsf tsh tsm tso tsr tss tst tsy ttc ttd tte ttf tth ttm tto ttr tts ttt tty tyc tyd tye tyf tym tyo tyr tys tyt ycc ycd yce ycf ych yco ycs ycy yde ydo yds ydt ydy yec yed yee yef yeh yem yeo yer yes yet yey yfc yfd yfe yff yfm yfr yfs yft yhc yhe yhs yht ymc yme ymm ymo yms ymt yoc yod yoe yof yom yoo yor yos yot yoy yrc yre yrf yro yrs yrt ysc yse ysm yso ysr yss yst ysy ytc ytd yte ytf yth ytm yto ytr yts ytt yyc yye yyf yys yyt yyy