sre srg sri srl srn sro srr srs srt sry ss- ssc sse ssg ssi ssl ssn sso ssr sss sst stc ste stg sti stl stn sto str sts stt sty sy- syc sye syg syi syl syn syr sys syt tcc tce tcg tci tcl tcn tco tcr tcs tct te- tec tee teg tei tel ten teo ter tes tet tey tgc tge tgg tgi tgl tgn tgo tgr tgs tgt tgy tic tie tig tii til tin tio tir tis tit tiy tlc tle tlg tli tll tln tlo tlr tls tlt tnc tne tng tni tnl tnn tno tnr tns tnt to- toc toe tog toi tol ton too tor tos tot toy trc tre trg tri trl trn tro trr trs trt try tsc tse tsg tsi tsl tsn tso tsr tss tst tsy ttc tte ttg tti ttl ttn tto ttr tts ttt tty tyc tye tyg tyl tyn tyo tyr tys tyt ycc yce yci ycl yco ycs ycy yec yee yeg yei yel yen yeo yer yes yet yey ygc ygl ygo yie yig yii yin yio yir yis yit ylc yle ylg yli yll ylr yls ylt yly yne yng ynn yns yny yoc yoe yog yoi yol yon yoo yor yos yot yoy yrc yre yrg yrn yro yrs yrt ysc yse ysg ysi ysl yso ysr yss yst ysy ytc yte ytl ytn yto ytr yts ytt yyc yye yyg yys yyt yyy