rbd rbe rbl rbm rbn rbp rbr rbs rbt rda rdb rdd rde rdl rdm rdn rdp rdr rds rdt re- rea reb red ree rel rem ren rep rer res ret rla rld rle rll rlm rln rlp rlr rls rlt rma rmb rmd rme rml rmm rmn rmp rmr rms rmt rna rnb rnd rnm rnn rnp rnr rns rnt rpa rpb rpd rpe rpl rpm rpn rpp rpr rps rpt rra rrb rrd rrl rrm rrn rrp rrr rrs rrt rsa rsb rsd rse rsl rsm rsn rsp rsr rss rst rta rtb rtd rte rtl rtm rtn rtp rtr rts rtt saa sab sad sae sal sam san sap sar sas sat sba sbb sbd sbe sbl sbm sbn sbp sbr sbs sbt sda sdb sdd sde sdl sdm sdn sdp sdr sds sdt se- sea seb sed see sel sem sen sep ser ses set sla slb sld sle sll slm sln slp slr sls slt sma smb smd sme sml smm smn smp smr sms smt sna snb snd sne snl snm snn snp snr sns snt spa spb spd spe spl spm spn spp spr sps spt sr- sra srb srd sre srl srm srn srp srr srs srt ss- ssa ssb ssd sse ssl ssm ssn ssp ssr sss sst sta stb std ste stl stm stn stp str sts stt taa tab tad tae tal tam tan tap tar tas tat tba tbb tbd tbe tbl tbm tbn tbp tbr tbs tbt tda tdb tdd tde tdl tdm tdn tdp tdr tds tdt te- tea teb ted tee tel tem ten tep ter tes tet tla tld tle tll tlm tln tlp tlr tls tlt tma tmb tmd tme tml tmm tmn tmp tmr tms tmt tna tnb tnd tne tnl tnm tnn tnp tnr tns tnt tpa tpb tpd tpe tpl tpm tpn tpp tpr tps tpt tra trb trd tre trl trm trn trp trr trs trt tsa tsb tsd tse tsl tsm tsn tsp tsr tss tst tta ttb ttd tte ttl ttm ttn ttp ttr tts ttt