slb slc sli sll slm slo slp sls slt sly sma smb smc smi sml smm smo smp sms smt smy soa sob soc soi sol som soo sop sos sot soy spa spb spc spi spl spm spo spp sps spt spy ss- ssa ssb ssc ssi ssl ssm sso ssp sss sst sta stb stc sti stl stm sto stp sts stt sty sy- sya syb syc syi syl sym syp sys syt taa tab tac tai tal tam tao tap tas tat tay tba tbb tbc tbi tbl tbm tbo tbp tbs tbt tca tcb tcc tci tcl tcm tco tcp tcs tct tia tib tic tii til tim tio tip tis tit tiy tla tlc tli tll tlm tlo tlp tls tlt tma tmb tmc tmi tml tmm tmo tmp tms tmt tmy to- toa tob toc toi tol tom too top tos tot toy tpa tpb tpc tpi tpl tpm tpo tpp tps tpt tsa tsb tsc tsi tsl tsm tso tsp tss tst tsy tta ttb ttc tti ttl ttm tto ttp tts ttt tty tya tyc tyl tym tyo typ tys tyt yaa yab yac yai yal yam yao yap yas yat yay ybc ybi ybl ybm ybp ybs yby yca ycc yci ycl yco ycp ycs ycy yii yim yio yip yis yit ylc yli yll ylm yls ylt yly yma ymc ymi yml ymm ymo yms ymt yob yoc yoi yol yom yoo yop yos yot yoy ypa ypl ypo yps ysa ysb ysc ysi ysl ysm yso ysp yss yst ysy yta ytc ytl ytm yto ytp yts ytt yyb yyc yys yyt yyy