spr sps spt spy sr- src sre srh sri srn sro srp srr srs srt sry ss- ssc sse ssh ssi ssn sso ssp ssr sss sst stc ste sth sti stn sto stp str sts stt sty sy- syc sye syh syi syn syp syr sys syt tcc tce tch tci tcn tco tcp tcr tcs tct te- tec tee teh tei ten teo tep ter tes tet tey th- thc the thh thi thn tho thp thr ths tht thy tic tie tih tii tin tio tip tir tis tit tiy tnc tne tnh tni tnn tno tnp tnr tns tnt to- toc toe toh toi ton too top tor tos tot toy tpc tpe tph tpi tpn tpo tpp tpr tps tpt trc tre trh tri trn tro trp trr trs trt try tsc tse tsh tsi tsn tso tsp tsr tss tst tsy ttc tte tth tti ttn tto ttp ttr tts ttt tty tyc tye tyn tyo typ tyr tys tyt ycc yce ych yci yco ycp ycs ycy yec yee yeh yei yen yeo yep yer yes yet yey yhc yhe yhi yhs yht yie yih yii yin yio yip yir yis yit yne ynn ynp yns yny yoc yoe yoi yon yoo yop yor yos yot yoy ypo yps yrc yre yrn yro yrp yrs yrt ysc yse ysi yso ysp ysr yss yst ysy ytc yte yth ytn yto ytp ytr yts ytt yyc yye yys yyt yyy