rac rae raf rai ral ran rap rar ras rat rca rcc rce rcf rci rcl rcn rcp rcr rcs rct re- rea rec ree ref rei rel ren rep rer res ret rfa rfc rfe rff rfi rfl rfn rfp rfr rfs rft ria ric rie rif rii ril rin rip rir ris rit rla rlc rle rlf rli rll rln rlp rlr rls rlt rna rnc rni rnn rnp rnr rns rnt rpa rpc rpe rpf rpi rpl rpn rpp rpr rps rpt rra rrc rrf rri rrl rrn rrp rrr rrs rrt rsa rsc rse rsf rsi rsl rsn rsp rsr rss rst rta rtc rte rtf rti rtl rtn rtp rtr rts rtt saa sac sae saf sai sal san sap sar sas sat sca scc sce scf sci scl scn scp scr scs sct se- sea sec see sef sei sel sen sep ser ses set sfa sfc sfe sff sfi sfl sfn sfp sfr sfs sft sia sic sie sif sii sil sin sip sir sis sit sla slc sle slf sli sll sln slp slr sls slt sna snc sne snf sni snl snn snp snr sns snt spa spc spe spf spi spl spn spp spr sps spt sr- sra src sre srf sri srl srn srp srr srs srt ss- ssa ssc sse ssf ssi ssl ssn ssp ssr sss sst sta stc ste stf sti stl stn stp str sts stt taa tac tae taf tai tal tan tap tar tas tat tca tcc tce tcf tci tcl tcn tcp tcr tcs tct te- tea tec tee tef tei tel ten tep ter tes tet tfa tfc tfe tff tfi tfl tfn tfp tfr tfs tft tia tic tie tif tii til tin tip tir tis tit tla tlc tle tlf tli tll tln tlp tlr tls tlt tna tnc tne tnf tni tnl tnn tnp tnr tns tnt tpa tpc tpe tpf tpi tpl tpn tpp tpr tps tpt tra trc tre trf tri trl trn trp trr trs trt tsa tsc tse tsf tsi tsl tsn tsp tsr tss tst tta ttc tte ttf tti ttl ttn ttp ttr tts ttt