rbg rbl rbn rbp rbr rbs rbt rda rdb rdd rde rdg rdl rdn rdp rdr rds rdt re- rea reb red ree reg rel ren rep rer res ret rga rgb rgd rge rgg rgn rgp rgr rgs rgt rla rld rle rlg rll rln rlp rlr rls rlt rna rnb rnd rng rnn rnp rnr rns rnt rpa rpb rpd rpe rpg rpl rpn rpp rpr rps rpt rra rrb rrd rrg rrl rrn rrp rrr rrs rrt rsa rsb rsd rse rsg rsl rsn rsp rsr rss rst rta rtb rtd rte rtg rtl rtn rtp rtr rts rtt saa sab sad sae sag sal san sap sar sas sat sba sbb sbd sbe sbg sbl sbn sbp sbr sbs sbt sda sdb sdd sde sdg sdl sdn sdp sdr sds sdt se- sea seb sed see seg sel sen sep ser ses set sga sgb sgd sge sgg sgl sgn sgp sgr sgs sgt sla slb sld sle slg sll sln slp slr sls slt sna snb snd sne sng snl snn snp snr sns snt spa spb spd spe spg spl spn spp spr sps spt sr- sra srb srd sre srg srl srn srp srr srs srt ss- ssa ssb ssd sse ssg ssl ssn ssp ssr sss sst sta stb std ste stg stl stn stp str sts stt taa tab tad tae tag tal tan tap tar tas tat tba tbb tbd tbe tbg tbl tbn tbp tbr tbs tbt tda tdb tdd tde tdg tdl tdn tdp tdr tds tdt te- tea teb ted tee teg tel ten tep ter tes tet tga tgb tge tgg tgl tgn tgp tgr tgs tgt tla tld tle tlg tll tln tlp tlr tls tlt tna tnb tnd tne tng tnl tnn tnp tnr tns tnt tpa tpb tpd tpe tpg tpl tpn tpp tpr tps tpt tra trb trd tre trg trl trn trp trr trs trt tsa tsb tsd tse tsg tsl tsn tsp tsr tss tst tta ttb ttd tte ttg ttl ttn ttp ttr tts ttt