ras rat rca rcc rce rcf rcl rcm rcn rcp rcr rcs rct re- rea rec ree ref rel rem ren rep rer res ret rfa rfc rfe rff rfl rfm rfn rfp rfr rfs rft rla rlc rle rlf rll rlm rln rlp rlr rls rlt rma rmc rme rmf rml rmm rmn rmp rmr rms rmt rna rnc rnm rnn rnp rnr rns rnt rpa rpc rpe rpf rpl rpm rpn rpp rpr rps rpt rra rrc rrf rrl rrm rrn rrp rrr rrs rrt rsa rsc rse rsf rsl rsm rsn rsp rsr rss rst rta rtc rte rtf rtl rtm rtn rtp rtr rts rtt saa sac sae saf sal sam san sap sar sas sat sca scc sce scf scl scm scn scp scr scs sct se- sea sec see sef sel sem sen sep ser ses set sfa sfc sfe sff sfl sfm sfn sfp sfr sfs sft sla slc sle slf sll slm sln slp slr sls slt sma smc sme smf sml smm smn smp smr sms smt sna snc sne snf snl snm snn snp snr sns snt spa spc spe spf spl spm spn spp spr sps spt sr- sra src sre srf srl srm srn srp srr srs srt ss- ssa ssc sse ssf ssl ssm ssn ssp ssr sss sst sta stc ste stf stl stm stn stp str sts stt taa tac tae taf tal tam tan tap tar tas tat tca tcc tce tcf tcl tcm tcn tcp tcr tcs tct te- tea tec tee tef tel tem ten tep ter tes tet tfa tfc tfe tff tfl tfm tfn tfp tfr tfs tft tla tlc tle tlf tll tlm tln tlp tlr tls tlt tma tmc tme tmf tml tmm tmn tmp tmr tms tmt tna tnc tne tnf tnl tnm tnn tnp tnr tns tnt tpa tpc tpe tpf tpl tpm tpn tpp tpr tps tpt tra trc tre trf trl trm trn trp trr trs trt tsa tsc tse tsf tsl tsm tsn tsp tsr tss tst tta ttc tte ttf ttl ttm ttn ttp ttr tts ttt