spm spn spo spp spr sps spt spy sr- src sre srg srm srn sro srp srr srs srt sry ss- ssc sse ssg ssm ssn sso ssp ssr sss sst stc ste stg stm stn sto stp str sts stt sty sy- syc sye syg sym syn syp syr sys syt tcc tce tcg tcm tcn tco tcp tcr tcs tct te- tec tee teg tem ten teo tep ter tes tet tey tgc tge tgg tgm tgn tgo tgp tgr tgs tgt tgy tmc tme tmg tmm tmn tmo tmp tmr tms tmt tmy tnc tne tng tnm tnn tno tnp tnr tns tnt to- toc toe tog tom ton too top tor tos tot toy tpc tpe tpg tpm tpn tpo tpp tpr tps tpt trc tre trg trm trn tro trp trr trs trt try tsc tse tsg tsm tsn tso tsp tsr tss tst tsy ttc tte ttg ttm ttn tto ttp ttr tts ttt tty tyc tye tyg tym tyn tyo typ tyr tys tyt ycc yce yco ycp ycs ycy yec yee yeg yem yen yeo yep yer yes yet yey ygc ygm ygo ymc yme ymg ymm ymo yms ymt yne yng ynn ynp yns yny yoc yoe yog yom yon yoo yop yor yos yot yoy ypg ypo yps yrc yre yrg yrn yro yrp yrs yrt ysc yse ysg ysm yso ysp ysr yss yst ysy ytc yte ytm ytn yto ytp ytr yts ytt yyc yye yyg yys yyt yyy