sog soi sol soo sop sos sot soy spc spd spe spg spi spl spo spp sps spt spy ss- ssc ssd sse ssg ssi ssl sso ssp sss sst stc std ste stg sti stl sto stp sts stt sty sy- syc syd sye syg syi syl syp sys syt tcc tcd tce tcg tci tcl tco tcp tcs tct tdc tdd tde tdg tdi tdl tdo tdp tds tdt tdy te- tec ted tee teg tei tel teo tep tes tet tey tgc tge tgg tgi tgl tgo tgp tgs tgt tgy tic tid tie tig tii til tio tip tis tit tiy tlc tld tle tlg tli tll tlo tlp tls tlt to- toc tod toe tog toi tol too top tos tot toy tpc tpd tpe tpg tpi tpl tpo tpp tps tpt tsc tsd tse tsg tsi tsl tso tsp tss tst tsy ttc ttd tte ttg tti ttl tto ttp tts ttt tty tyc tyd tye tyg tyl tyo typ tys tyt ycc ycd yce yci ycl yco ycp ycs ycy yde ydg ydl ydo yds ydt ydy yec yed yee yeg yei yel yeo yep yes yet yey ygc ygl ygo yid yie yig yii yio yip yis yit ylc yld yle ylg yli yll yls ylt yly yoc yod yoe yog yoi yol yoo yop yos yot yoy ypd ypg ypl ypo yps ysc yse ysg ysi ysl yso ysp yss yst ysy ytc ytd yte ytl yto ytp yts ytt yyc yye yyg yys yyt yyy