sot soy sr- srb src sre srh sri srl sro srr srs srt sry ss- ssb ssc sse ssh ssi ssl sso ssr sss sst stb stc ste sth sti stl sto str sts stt sty sy- syb syc sye syh syi syl syr sys syt tbb tbc tbe tbh tbi tbl tbo tbr tbs tbt tcb tcc tce tch tci tcl tco tcr tcs tct te- teb tec tee teh tei tel teo ter tes tet tey th- thb thc the thh thi thl tho thr ths tht thy tib tic tie tih tii til tio tir tis tit tiy tlc tle tlh tli tll tlo tlr tls tlt to- tob toc toe toh toi tol too tor tos tot toy trb trc tre trh tri trl tro trr trs trt try tsb tsc tse tsh tsi tsl tso tsr tss tst tsy ttb ttc tte tth tti ttl tto ttr tts ttt tty tyc tye tyl tyo tyr tys tyt ybc ybe ybi ybl ybr ybs yby ycc yce ych yci ycl yco ycs ycy yeb yec yee yeh yei yel yeo yer yes yet yey yhc yhe yhi yhs yht yie yih yii yio yir yis yit ylc yle yli yll ylr yls ylt yly yob yoc yoe yoi yol yoo yor yos yot yoy yrc yre yro yrs yrt ysb ysc yse ysi ysl yso ysr yss yst ysy ytc yte yth ytl yto ytr yts ytt yyb yyc yye yys yyt yyy