sor sos sot soy sr- srb srd sre srh sri srl sro srr srs srt sry ss- ssb ssd sse ssh ssi ssl sso ssr sss sst stb std ste sth sti stl sto str sts stt sty sy- syb syd sye syh syi syl syr sys syt tbb tbd tbe tbh tbi tbl tbo tbr tbs tbt tdb tdd tde tdh tdi tdl tdo tdr tds tdt tdy te- teb ted tee teh tei tel teo ter tes tet tey th- thb thd the thh thi thl tho thr ths tht thy tib tid tie tih tii til tio tir tis tit tiy tld tle tlh tli tll tlo tlr tls tlt to- tob tod toe toh toi tol too tor tos tot toy trb trd tre trh tri trl tro trr trs trt try tsb tsd tse tsh tsi tsl tso tsr tss tst tsy ttb ttd tte tth tti ttl tto ttr tts ttt tty tyd tye tyl tyo tyr tys tyt ybe ybi ybl ybr ybs yby yde ydl ydo yds ydt ydy yeb yed yee yeh yei yel yeo yer yes yet yey yhe yhi yhs yht yid yie yih yii yio yir yis yit yld yle yli yll ylr yls ylt yly yob yod yoe yoi yol yoo yor yos yot yoy yre yro yrs yrt ysb yse ysi ysl yso ysr yss yst ysy ytd yte yth ytl yto ytr yts ytt yyb yye yys yyt yyy