rbg rbi rbm rbn rbr rbs rbt rda rdb rdd rde rdg rdi rdm rdn rdr rds rdt re- rea reb red ree reg rei rem ren rer res ret rga rgb rgd rge rgg rgi rgn rgr rgs rgt ria rib rid rie rig rii rim rin rir ris rit rma rmb rmd rme rmg rmi rmm rmn rmr rms rmt rna rnb rnd rng rni rnm rnn rnr rns rnt rra rrb rrd rrg rri rrm rrn rrr rrs rrt rsa rsb rsd rse rsg rsi rsm rsn rsr rss rst rta rtb rtd rte rtg rti rtm rtn rtr rts rtt saa sab sad sae sag sai sam san sar sas sat sba sbb sbd sbe sbg sbi sbm sbn sbr sbs sbt sda sdb sdd sde sdg sdi sdm sdn sdr sds sdt se- sea seb sed see seg sei sem sen ser ses set sga sgb sgd sge sgg sgi sgm sgn sgr sgs sgt sia sib sid sie sig sii sim sin sir sis sit sma smb smd sme smg smi smm smn smr sms smt sna snb snd sne sng sni snm snn snr sns snt sr- sra srb srd sre srg sri srm srn srr srs srt ss- ssa ssb ssd sse ssg ssi ssm ssn ssr sss sst sta stb std ste stg sti stm stn str sts stt taa tab tad tae tag tai tam tan tar tas tat tba tbb tbd tbe tbg tbi tbm tbn tbr tbs tbt tda tdb tdd tde tdg tdi tdm tdn tdr tds tdt te- tea teb ted tee teg tei tem ten ter tes tet tga tgb tge tgg tgi tgm tgn tgr tgs tgt tia tib tid tie tig tii tim tin tir tis tit tma tmb tmd tme tmg tmi tmm tmn tmr tms tmt tna tnb tnd tne tng tni tnm tnn tnr tns tnt tra trb trd tre trg tri trm trn trr trs trt tsa tsb tsd tse tsg tsi tsm tsn tsr tss tst tta ttb ttd tte ttg tti ttm ttn ttr tts ttt