soe sof soi sol som soo sop sos sot soy spc spe spf spi spl spm spo spp sps spt spy ss- ssc sse ssf ssi ssl ssm sso ssp sss sst stc ste stf sti stl stm sto stp sts stt sty sy- syc sye syi syl sym syp sys syt tcc tce tcf tci tcl tcm tco tcp tcs tct te- tec tee tef tei tel tem teo tep tes tet tey tfc tfe tff tfi tfl tfm tfo tfp tfs tft tic tie tif tii til tim tio tip tis tit tiy tlc tle tlf tli tll tlm tlo tlp tls tlt tmc tme tmf tmi tml tmm tmo tmp tms tmt tmy to- toc toe tof toi tol tom too top tos tot toy tpc tpe tpf tpi tpl tpm tpo tpp tps tpt tsc tse tsf tsi tsl tsm tso tsp tss tst tsy ttc tte ttf tti ttl ttm tto ttp tts ttt tty tyc tye tyf tyl tym tyo typ tys tyt ycc yce ycf yci ycl yco ycp ycs ycy yec yee yef yei yel yem yeo yep yes yet yey yfc yfe yff yfm yfs yft yie yif yii yim yio yip yis yit ylc yle yli yll ylm yls ylt yly ymc yme ymi yml ymm ymo yms ymt yoc yoe yof yoi yol yom yoo yop yos yot yoy ypf ypl ypo yps ysc yse ysi ysl ysm yso ysp yss yst ysy ytc yte ytf ytl ytm yto ytp yts ytt yyc yye yyf yys yyt yyy