smo smp sms smt smy sna snc snd sni snm snn sno snp sns snt sny soa soc sod soi som son soo sop sos sot soy spa spc spd spi spm spn spo spp sps spt spy ss- ssa ssc ssd ssi ssm ssn sso ssp sss sst sta stc std sti stm stn sto stp sts stt sty sy- sya syc syd syi sym syn syp sys syt taa tac tad tai tam tan tao tap tas tat tay tca tcc tcd tci tcm tcn tco tcp tcs tct tda tdc tdd tdi tdm tdn tdo tdp tds tdt tdy tia tic tid tii tim tin tio tip tis tit tiy tma tmc tmd tmi tmm tmn tmo tmp tms tmt tmy tna tnc tnd tni tnm tnn tno tnp tns tnt to- toa toc tod toi tom ton too top tos tot toy tpa tpc tpd tpi tpm tpn tpo tpp tps tpt tsa tsc tsd tsi tsm tsn tso tsp tss tst tsy tta ttc ttd tti ttm ttn tto ttp tts ttt tty tya tyc tyd tym tyn tyo typ tys tyt yaa yac yad yai yam yan yao yap yas yat yay yca ycc ycd yci yco ycp ycs ycy yda ydn ydo yds ydt ydy yid yii yim yin yio yip yis yit yma ymc ymi ymm ymo yms ymt yna ynd ynn ynp yns yny yoc yod yoi yom yon yoo yop yos yot yoy ypa ypd ypo yps ysa ysc ysi ysm yso ysp yss yst ysy yta ytc ytd ytm ytn yto ytp yts ytt yyc yys yyt yyy