rat rca rcc rce rcf rcg rcl rcm rco rcr rcs rct re- rea rec ree ref reg rel rem reo rer res ret rfa rfc rfe rff rfg rfl rfm rfo rfr rfs rft rga rgc rge rgf rgg rgo rgr rgs rgt rla rlc rle rlf rlg rll rlm rlo rlr rls rlt rma rmc rme rmf rmg rml rmm rmo rmr rms rmt roa roc roe rof rog rol rom roo ror ros rot rra rrc rrf rrg rrl rrm rrr rrs rrt rsa rsc rse rsf rsg rsl rsm rso rsr rss rst rta rtc rte rtf rtg rtl rtm rto rtr rts rtt saa sac sae saf sag sal sam sao sar sas sat sca scc sce scf scg scl scm sco scr scs sct se- sea sec see sef seg sel sem seo ser ses set sfa sfc sfe sff sfg sfl sfm sfo sfr sfs sft sga sgc sge sgf sgg sgl sgm sgo sgr sgs sgt sla slc sle slf slg sll slm slo slr sls slt sma smc sme smf smg sml smm smo smr sms smt soa soc soe sof sog sol som soo sor sos sot sr- sra src sre srf srg srl srm sro srr srs srt ss- ssa ssc sse ssf ssg ssl ssm sso ssr sss sst sta stc ste stf stg stl stm sto str sts stt taa tac tae taf tag tal tam tao tar tas tat tca tcc tce tcf tcg tcl tcm tco tcr tcs tct te- tea tec tee tef teg tel tem teo ter tes tet tfa tfc tfe tff tfg tfl tfm tfo tfr tfs tft tga tgc tge tgf tgg tgl tgm tgo tgr tgs tgt tla tlc tle tlf tlg tll tlm tlo tlr tls tlt tma tmc tme tmf tmg tml tmm tmo tmr tms tmt to- toa toc toe tof tog tol tom too tor tos tot tra trc tre trf trg trl trm tro trr trs trt tsa tsc tse tsf tsg tsl tsm tso tsr tss tst tta ttc tte ttf ttg ttl ttm tto ttr tts ttt