spa spe spl spm spn spo spp spr sps spt spx sr- sra sre srl srm srn sro srp srr srs srt srx ss- ssa sse ssl ssm ssn sso ssp ssr sss sst ssx sta ste stl stm stn sto stp str sts stt stx sxl sxm sxn sxs sxt t-x taa tae tal tam tan tao tap tar tas tat tax te- tea tee tel tem ten teo tep ter tes tet tex tla tle tll tlm tln tlo tlp tlr tls tlt tlx tma tme tml tmm tmn tmo tmp tmr tms tmt tmx tna tne tnl tnm tnn tno tnp tnr tns tnt tnx to- toa toe tol tom ton too top tor tos tot tox tpa tpe tpl tpm tpn tpo tpp tpr tps tpt tpx tra tre trl trm trn tro trp trr trs trt trx tsa tse tsl tsm tsn tso tsp tsr tss tst tsx tta tte ttl ttm ttn tto ttp ttr tts ttt ttx txe txl txn txs txt xaa xal xam xan xap xar xas xat xee xel xem xen xep xer xes xet xex xla xlm xlr xls xlt xma xml xmm xmo xmp xmr xms xmt xmx xna xno xns xoa xom xon xoo xop xor xos xot xox xpa xpe xpl xpm xpn xpo xpp xps xpt xrt xrx xsa xsl xsm xsp xss xst xtm xtp xtr xts xtx xxl xxo xxp xxx