snt soa soc sod soe sog soi som son soo sop sor sos sot spa spc spd spe spg spi spm spn spo spp spr sps spt sr- sra src srd sre srg sri srm srn sro srp srr srs srt ss- ssa ssc ssd sse ssg ssi ssm ssn sso ssp ssr sss sst sta stc std ste stg sti stm stn sto stp str sts stt taa tac tad tae tag tai tam tan tao tap tar tas tat tca tcc tcd tce tcg tci tcm tcn tco tcp tcr tcs tct tda tdc tdd tde tdg tdi tdm tdn tdo tdp tdr tds tdt te- tea tec ted tee teg tei tem ten teo tep ter tes tet tga tgc tge tgg tgi tgm tgn tgo tgp tgr tgs tgt tia tic tid tie tig tii tim tin tio tip tir tis tit tma tmc tmd tme tmg tmi tmm tmn tmo tmp tmr tms tmt tna tnc tnd tne tng tni tnm tnn tno tnp tnr tns tnt to- toa toc tod toe tog toi tom ton too top tor tos tot tpa tpc tpd tpe tpg tpi tpm tpn tpo tpp tpr tps tpt tra trc trd tre trg tri trm trn tro trp trr trs trt tsa tsc tsd tse tsg tsi tsm tsn tso tsp tsr tss tst tta ttc ttd tte ttg tti ttm ttn tto ttp ttr tts ttt