soi soo sop sor sos sot soy spa spc spe spg spi spo spp spr sps spt spy sr- sra src sre srg sri sro srp srr srs srt sry ss- ssa ssc sse ssg ssi sso ssp ssr sss sst sta stc ste stg sti sto stp str sts stt sty sy- sya syc sye syg syi syp syr sys syt taa tac tae tag tai tao tap tar tas tat tay tca tcc tce tcg tci tco tcp tcr tcs tct te- tea tec tee teg tei teo tep ter tes tet tey tga tgc tge tgg tgi tgo tgp tgr tgs tgt tgy tia tic tie tig tii tio tip tir tis tit tiy to- toa toc toe tog toi too top tor tos tot toy tpa tpc tpe tpg tpi tpo tpp tpr tps tpt tra trc tre trg tri tro trp trr trs trt try tsa tsc tse tsg tsi tso tsp tsr tss tst tsy tta ttc tte ttg tti tto ttp ttr tts ttt tty tya tyc tye tyg tyo typ tyr tys tyt yaa yac yae yag yai yao yap yar yas yat yay yca ycc yce yci yco ycp ycs ycy yea yec yee yeg yei yeo yep yer yes yet yey yga ygc ygo yie yig yii yio yip yir yis yit yoc yoe yog yoi yoo yop yor yos yot yoy ypa ypg ypo yps yra yrc yre yrg yro yrp yrs yrt ysa ysc yse ysg ysi yso ysp ysr yss yst ysy yta ytc yte yto ytp ytr yts ytt yyc yye yyg yys yyt yyy