slt sly soa soc sog soh soi sol soo sop sos sot soy spa spc spg sph spi spl spo spp sps spt spy ss- ssa ssc ssg ssh ssi ssl sso ssp sss sst sta stc stg sth sti stl sto stp sts stt sty sy- sya syc syg syh syi syl syp sys syt taa tac tag tah tai tal tao tap tas tat tay tca tcc tcg tch tci tcl tco tcp tcs tct tga tgc tgg tgh tgi tgl tgo tgp tgs tgt tgy th- tha thc thg thh thi thl tho thp ths tht thy tia tic tig tih tii til tio tip tis tit tiy tla tlc tlg tlh tli tll tlo tlp tls tlt to- toa toc tog toh toi tol too top tos tot toy tpa tpc tpg tph tpi tpl tpo tpp tps tpt tsa tsc tsg tsh tsi tsl tso tsp tss tst tsy tta ttc ttg tth tti ttl tto ttp tts ttt tty tya tyc tyg tyl tyo typ tys tyt yaa yac yag yah yai yal yao yap yas yat yay yca ycc ych yci ycl yco ycp ycs ycy yga ygc ygl ygo yha yhc yhi yhs yht yig yih yii yio yip yis yit ylc ylg yli yll yls ylt yly yoc yog yoi yol yoo yop yos yot yoy ypa ypg ypl ypo yps ysa ysc ysg ysi ysl yso ysp yss yst ysy yta ytc yth ytl yto ytp yts ytt yyc yyg yys yyt yyy