rat rca rcc rce rcg rcl rcm rcn rco rcr rcs rct re- rea rec ree reg rel rem ren reo rer res ret rga rgc rge rgg rgn rgo rgr rgs rgt rla rlc rle rlg rll rlm rln rlo rlr rls rlt rma rmc rme rmg rml rmm rmn rmo rmr rms rmt rna rnc rng rnm rnn rno rnr rns rnt roa roc roe rog rol rom ron roo ror ros rot rra rrc rrg rrl rrm rrn rrr rrs rrt rsa rsc rse rsg rsl rsm rsn rso rsr rss rst rta rtc rte rtg rtl rtm rtn rto rtr rts rtt saa sac sae sag sal sam san sao sar sas sat sca scc sce scg scl scm scn sco scr scs sct se- sea sec see seg sel sem sen seo ser ses set sga sgc sge sgg sgl sgm sgn sgo sgr sgs sgt sla slc sle slg sll slm sln slo slr sls slt sma smc sme smg sml smm smn smo smr sms smt sna snc sne sng snl snm snn sno snr sns snt soa soc soe sog sol som son soo sor sos sot sr- sra src sre srg srl srm srn sro srr srs srt ss- ssa ssc sse ssg ssl ssm ssn sso ssr sss sst sta stc ste stg stl stm stn sto str sts stt taa tac tae tag tal tam tan tao tar tas tat tca tcc tce tcg tcl tcm tcn tco tcr tcs tct te- tea tec tee teg tel tem ten teo ter tes tet tga tgc tge tgg tgl tgm tgn tgo tgr tgs tgt tla tlc tle tlg tll tlm tln tlo tlr tls tlt tma tmc tme tmg tml tmm tmn tmo tmr tms tmt tna tnc tne tng tnl tnm tnn tno tnr tns tnt to- toa toc toe tog tol tom ton too tor tos tot tra trc tre trg trl trm trn tro trr trs trt tsa tsc tse tsg tsl tsm tsn tso tsr tss tst tta ttc tte ttg ttl ttm ttn tto ttr tts ttt