sos sot soy spd spe spi spl spn spo spp spr sps spt spy sr- srd sre sri srl srn sro srp srr srs srt sry ss- ssd sse ssi ssl ssn sso ssp ssr sss sst std ste sti stl stn sto stp str sts stt sty sy- syd sye syi syl syn syp syr sys syt tdd tde tdi tdl tdn tdo tdp tdr tds tdt tdy te- ted tee tei tel ten teo tep ter tes tet tey tid tie tii til tin tio tip tir tis tit tiy tld tle tli tll tln tlo tlp tlr tls tlt tnd tne tni tnl tnn tno tnp tnr tns tnt to- tod toe toi tol ton too top tor tos tot toy tpd tpe tpi tpl tpn tpo tpp tpr tps tpt trd tre tri trl trn tro trp trr trs trt try tsd tse tsi tsl tsn tso tsp tsr tss tst tsy ttd tte tti ttl ttn tto ttp ttr tts ttt tty tyd tye tyl tyn tyo typ tyr tys tyt yde ydl ydn ydo yds ydt ydy yed yee yei yel yen yeo yep yer yes yet yey yid yie yii yin yio yip yir yis yit yld yle yli yll ylr yls ylt yly ynd yne ynn ynp yns yny yod yoe yoi yol yon yoo yop yor yos yot yoy ypd ypl ypo yps yre yrn yro yrp yrs yrt yse ysi ysl yso ysp ysr yss yst ysy ytd yte ytl ytn yto ytp ytr yts ytt yye yys yyt yyy