sni snl snm snn sno snr sns snt soa sob soc soe sof soi sol som son soo sor sos sot sr- sra srb src sre srf sri srl srm srn sro srr srs srt ss- ssa ssb ssc sse ssf ssi ssl ssm ssn sso ssr sss sst sta stb stc ste stf sti stl stm stn sto str sts stt taa tab tac tae taf tai tal tam tan tao tar tas tat tba tbb tbc tbe tbf tbi tbl tbm tbn tbo tbr tbs tbt tca tcb tcc tce tcf tci tcl tcm tcn tco tcr tcs tct te- tea teb tec tee tef tei tel tem ten teo ter tes tet tfa tfb tfc tfe tff tfi tfl tfm tfn tfo tfr tfs tft tia tib tic tie tif tii til tim tin tio tir tis tit tla tlc tle tlf tli tll tlm tln tlo tlr tls tlt tma tmb tmc tme tmf tmi tml tmm tmn tmo tmr tms tmt tna tnb tnc tne tnf tni tnl tnm tnn tno tnr tns tnt to- toa tob toc toe tof toi tol tom ton too tor tos tot tra trb trc tre trf tri trl trm trn tro trr trs trt tsa tsb tsc tse tsf tsi tsl tsm tsn tso tsr tss tst tta ttb ttc tte ttf tti ttl ttm ttn tto ttr tts ttt