soi som son soo sop sos sot soy spc spe spf spi spm spn spo spp sps spt spy ss- ssc sse ssf ssi ssm ssn sso ssp sss sst stc ste stf sti stm stn sto stp sts stt sty sy- syc sye syi sym syn syp sys syt tcc tce tcf tci tcm tcn tco tcp tcs tct te- tec tee tef tei tem ten teo tep tes tet tey tfc tfe tff tfi tfm tfn tfo tfp tfs tft tic tie tif tii tim tin tio tip tis tit tiy tmc tme tmf tmi tmm tmn tmo tmp tms tmt tmy tnc tne tnf tni tnm tnn tno tnp tns tnt to- toc toe tof toi tom ton too top tos tot toy tpc tpe tpf tpi tpm tpn tpo tpp tps tpt tsc tse tsf tsi tsm tsn tso tsp tss tst tsy ttc tte ttf tti ttm ttn tto ttp tts ttt tty tyc tye tyf tym tyn tyo typ tys tyt ycc yce ycf yci yco ycp ycs ycy yec yee yef yei yem yen yeo yep yes yet yey yfc yfe yff yfm yfs yft yie yif yii yim yin yio yip yis yit ymc yme ymi ymm ymo yms ymt yne ynn ynp yns yny yoc yoe yof yoi yom yon yoo yop yos yot yoy ypf ypo yps ysc yse ysi ysm yso ysp yss yst ysy ytc yte ytf ytm ytn yto ytp yts ytt yyc yye yyf yys yyt yyy