sre srf sri srl srm srn srr srs srt srx ss- ssa sse ssf ssi ssl ssm ssn ssr sss sst ssx sta ste stf sti stl stm stn str sts stt stx sxi sxl sxm sxn sxs sxt t-x taa tae taf tai tal tam tan tar tas tat tax te- tea tee tef tei tel tem ten ter tes tet tex tfa tfe tff tfi tfl tfm tfn tfr tfs tft tfx tia tie tif tii til tim tin tir tis tit tix tla tle tlf tli tll tlm tln tlr tls tlt tlx tma tme tmf tmi tml tmm tmn tmr tms tmt tmx tna tne tnf tni tnl tnm tnn tnr tns tnt tnx tra tre trf tri trl trm trn trr trs trt trx tsa tse tsf tsi tsl tsm tsn tsr tss tst tsx tta tte ttf tti ttl ttm ttn ttr tts ttt ttx txe txf txi txl txn txs txt xaa xaf xal xam xan xar xas xat xee xel xem xen xer xes xet xex xfa xfe xfl xfm xfn xfs xft xfx xia xie xii xin xis xit xix xla xlf xli xlm xlr xls xlt xma xmf xmi xml xmm xmr xms xmt xmx xna xns xrf xrt xrx xsa xsi xsl xsm xss xst xtf xti xtm xtr xts xtx xxi xxl xxx