ssi ssl sso ssp ssr sss sst ste stf sth sti stl sto stp str sts stt sty sy- sye syh syi syl syp syr sys syt te- tee tef teh tei tel teo tep ter tes tet tey tfe tff tfh tfi tfl tfo tfp tfr tfs tft th- the thf thh thi thl tho thp thr ths tht thy tie tif tih tii til tio tip tir tis tit tiy tle tlf tlh tli tll tlo tlp tlr tls tlt to- toe tof toh toi tol too top tor tos tot toy tpe tpf tph tpi tpl tpo tpp tpr tps tpt tre trf trh tri trl tro trp trr trs trt try tse tsf tsh tsi tsl tso tsp tsr tss tst tsy tte ttf tth tti ttl tto ttp ttr tts ttt tty tye tyf tyl tyo typ tyr tys tyt yee yef yeh yei yel yeo yep yer yes yet yey yfe yff yfr yfs yft yhe yhi yhs yht yie yif yih yii yio yip yir yis yit yle yli yll ylr yls ylt yly yoe yof yoi yol yoo yop yor yos yot yoy ypf ypl ypo yps yre yrf yro yrp yrs yrt yse ysi ysl yso ysp ysr yss yst ysy yte ytf yth ytl yto ytp ytr yts ytt yye yyf yys yyt yyy