ral ran rao rap rar ras rat rca rcc rce rcg rcl rcn rco rcp rcr rcs rct re- rea rec ree reg rel ren reo rep rer res ret rga rgc rge rgg rgn rgo rgp rgr rgs rgt rla rlc rle rlg rll rln rlo rlp rlr rls rlt rna rnc rng rnn rno rnp rnr rns rnt roa roc roe rog rol ron roo rop ror ros rot rpa rpc rpe rpg rpl rpn rpo rpp rpr rps rpt rra rrc rrg rrl rrn rrp rrr rrs rrt rsa rsc rse rsg rsl rsn rso rsp rsr rss rst rta rtc rte rtg rtl rtn rto rtp rtr rts rtt saa sac sae sag sal san sao sap sar sas sat sca scc sce scg scl scn sco scp scr scs sct se- sea sec see seg sel sen seo sep ser ses set sga sgc sge sgg sgl sgn sgo sgp sgr sgs sgt sla slc sle slg sll sln slo slp slr sls slt sna snc sne sng snl snn sno snp snr sns snt soa soc soe sog sol son soo sop sor sos sot spa spc spe spg spl spn spo spp spr sps spt sr- sra src sre srg srl srn sro srp srr srs srt ss- ssa ssc sse ssg ssl ssn sso ssp ssr sss sst sta stc ste stg stl stn sto stp str sts stt taa tac tae tag tal tan tao tap tar tas tat tca tcc tce tcg tcl tcn tco tcp tcr tcs tct te- tea tec tee teg tel ten teo tep ter tes tet tga tgc tge tgg tgl tgn tgo tgp tgr tgs tgt tla tlc tle tlg tll tln tlo tlp tlr tls tlt tna tnc tne tng tnl tnn tno tnp tnr tns tnt to- toa toc toe tog tol ton too top tor tos tot tpa tpc tpe tpg tpl tpn tpo tpp tpr tps tpt tra trc tre trg trl trn tro trp trr trs trt tsa tsc tse tsg tsl tsn tso tsp tsr tss tst tta ttc tte ttg ttl ttn tto ttp ttr tts ttt