soi som soo sop sor sos sot soy spc spd spe spi spm spo spp spr sps spt spy sr- src srd sre sri srm sro srp srr srs srt sry ss- ssc ssd sse ssi ssm sso ssp ssr sss sst stc std ste sti stm sto stp str sts stt sty sy- syc syd sye syi sym syp syr sys syt tcc tcd tce tci tcm tco tcp tcr tcs tct tdc tdd tde tdi tdm tdo tdp tdr tds tdt tdy te- tec ted tee tei tem teo tep ter tes tet tey tic tid tie tii tim tio tip tir tis tit tiy tmc tmd tme tmi tmm tmo tmp tmr tms tmt tmy to- toc tod toe toi tom too top tor tos tot toy tpc tpd tpe tpi tpm tpo tpp tpr tps tpt trc trd tre tri trm tro trp trr trs trt try tsc tsd tse tsi tsm tso tsp tsr tss tst tsy ttc ttd tte tti ttm tto ttp ttr tts ttt tty tyc tyd tye tym tyo typ tyr tys tyt ycc ycd yce yci yco ycp ycs ycy yde ydo yds ydt ydy yec yed yee yei yem yeo yep yer yes yet yey yid yie yii yim yio yip yir yis yit ymc yme ymi ymm ymo yms ymt yoc yod yoe yoi yom yoo yop yor yos yot yoy ypd ypo yps yrc yre yro yrp yrs yrt ysc yse ysi ysm yso ysp ysr yss yst ysy ytc ytd yte ytm yto ytp ytr yts ytt yyc yye yys yyt yyy