sps spt spy sr- srd sre srh sri srl sro srp srr srs srt sry ss- ssd sse ssh ssi ssl sso ssp ssr sss sst std ste sth sti stl sto stp str sts stt sty sy- syd sye syh syi syl syp syr sys syt tdd tde tdh tdi tdl tdo tdp tdr tds tdt tdy te- ted tee teh tei tel teo tep ter tes tet tey th- thd the thh thi thl tho thp thr ths tht thy tid tie tih tii til tio tip tir tis tit tiy tld tle tlh tli tll tlo tlp tlr tls tlt to- tod toe toh toi tol too top tor tos tot toy tpd tpe tph tpi tpl tpo tpp tpr tps tpt trd tre trh tri trl tro trp trr trs trt try tsd tse tsh tsi tsl tso tsp tsr tss tst tsy ttd tte tth tti ttl tto ttp ttr tts ttt tty tyd tye tyl tyo typ tyr tys tyt yde ydl ydo yds ydt ydy yed yee yeh yei yel yeo yep yer yes yet yey yhe yhi yhs yht yid yie yih yii yio yip yir yis yit yld yle yli yll ylr yls ylt yly yod yoe yoi yol yoo yop yor yos yot yoy ypd ypl ypo yps yre yro yrp yrs yrt yse ysi ysl yso ysp ysr yss yst ysy ytd yte yth ytl yto ytp ytr yts ytt yye yys yyt yyy