sli sll sln slp sls slt slx sna snc sne sng sni snl snn snp sns snt spa spc spe spg spi spl spn spp sps spt spx ss- ssa ssc sse ssg ssi ssl ssn ssp sss sst ssx sta stc ste stg sti stl stn stp sts stt stx sxc sxi sxl sxn sxs sxt t-x taa tac tae tag tai tal tan tap tas tat tax tca tcc tce tcg tci tcl tcn tcp tcs tct tcx te- tea tec tee teg tei tel ten tep tes tet tex tga tgc tge tgg tgi tgl tgn tgp tgs tgt tia tic tie tig tii til tin tip tis tit tix tla tlc tle tlg tli tll tln tlp tls tlt tlx tna tnc tne tng tni tnl tnn tnp tns tnt tnx tpa tpc tpe tpg tpi tpl tpn tpp tps tpt tpx tsa tsc tse tsg tsi tsl tsn tsp tss tst tsx tta ttc tte ttg tti ttl ttn ttp tts ttt ttx txe txi txl txn txs txt xaa xac xag xal xan xap xas xat xci xcl xcp xcx xee xeg xel xen xep xes xet xex xge xgi xgl xgp xia xic xie xii xin xis xit xix xla xlg xli xls xlt xna xnc xns xpa xpc xpe xpg xpl xpn xpp xps xpt xsa xsc xsi xsl xsp xss xst xtc xti xtp xts xtx xxi xxl xxp xxx