sot soy spc spd spg spi spl spm spo spp sps spt spy ss- ssc ssd ssg ssi ssl ssm sso ssp sss sst stc std stg sti stl stm sto stp sts stt sty sy- syc syd syg syi syl sym syp sys syt tcc tcd tcg tci tcl tcm tco tcp tcs tct tdc tdd tdg tdi tdl tdm tdo tdp tds tdt tdy tgc tgg tgi tgl tgm tgo tgp tgs tgt tgy tic tid tig tii til tim tio tip tis tit tiy tlc tld tlg tli tll tlm tlo tlp tls tlt tmc tmd tmg tmi tml tmm tmo tmp tms tmt tmy to- toc tod tog toi tol tom too top tos tot toy tpc tpd tpg tpi tpl tpm tpo tpp tps tpt tsc tsd tsg tsi tsl tsm tso tsp tss tst tsy ttc ttd ttg tti ttl ttm tto ttp tts ttt tty tyc tyd tyg tyl tym tyo typ tys tyt ycc ycd yci ycl yco ycp ycs ycy ydg ydl ydo yds ydt ydy ygc ygl ygm ygo yid yig yii yim yio yip yis yit ylc yld ylg yli yll ylm yls ylt yly ymc ymg ymi yml ymm ymo yms ymt yoc yod yog yoi yol yom yoo yop yos yot yoy ypd ypg ypl ypo yps ysc ysg ysi ysl ysm yso ysp yss yst ysy ytc ytd ytl ytm yto ytp yts ytt yyc yyg yys yyt yyy