sme smi smm smo smp smr sms smt smx soa sod soe soi som soo sop sor sos sot sox spa spd spe spi spm spo spp spr sps spt spx sr- sra srd sre sri srm sro srp srr srs srt srx ss- ssa ssd sse ssi ssm sso ssp ssr sss sst ssx sta std ste sti stm sto stp str sts stt stx sxi sxm sxs sxt t-x taa tad tae tai tam tao tap tar tas tat tax tda tdd tde tdi tdm tdo tdp tdr tds tdt tdx te- tea ted tee tei tem teo tep ter tes tet tex tia tid tie tii tim tio tip tir tis tit tix tma tmd tme tmi tmm tmo tmp tmr tms tmt tmx to- toa tod toe toi tom too top tor tos tot tox tpa tpd tpe tpi tpm tpo tpp tpr tps tpt tpx tra trd tre tri trm tro trp trr trs trt trx tsa tsd tse tsi tsm tso tsp tsr tss tst tsx tta ttd tte tti ttm tto ttp ttr tts ttt ttx txe txi txs txt xaa xad xam xap xar xas xat xda xde xdi xdm xdr xds xdt xed xee xem xep xer xes xet xex xia xie xii xio xis xit xix xma xmd xmi xmm xmo xmp xmr xms xmt xmx xoa xod xoi xom xoo xop xor xos xot xox xpa xpd xpe xpm xpo xpp xps xpt xrd xrt xrx xsa xsi xsm xsp xss xst xti xtm xtp xtr xts xtx xxi xxo xxp xxx