rae rai ral ran rap rar ras rat rba rbb rbd rbe rbi rbl rbn rbp rbr rbs rbt rda rdb rdd rde rdi rdl rdn rdp rdr rds rdt re- rea reb red ree rei rel ren rep rer res ret ria rib rid rie rii ril rin rip rir ris rit rla rld rle rli rll rln rlp rlr rls rlt rna rnb rnd rni rnn rnp rnr rns rnt rpa rpb rpd rpe rpi rpl rpn rpp rpr rps rpt rra rrb rrd rri rrl rrn rrp rrr rrs rrt rsa rsb rsd rse rsi rsl rsn rsp rsr rss rst rta rtb rtd rte rti rtl rtn rtp rtr rts rtt saa sab sad sae sai sal san sap sar sas sat sba sbb sbd sbe sbi sbl sbn sbp sbr sbs sbt sda sdb sdd sde sdi sdl sdn sdp sdr sds sdt se- sea seb sed see sei sel sen sep ser ses set sia sib sid sie sii sil sin sip sir sis sit sla slb sld sle sli sll sln slp slr sls slt sna snb snd sne sni snl snn snp snr sns snt spa spb spd spe spi spl spn spp spr sps spt sr- sra srb srd sre sri srl srn srp srr srs srt ss- ssa ssb ssd sse ssi ssl ssn ssp ssr sss sst sta stb std ste sti stl stn stp str sts stt taa tab tad tae tai tal tan tap tar tas tat tba tbb tbd tbe tbi tbl tbn tbp tbr tbs tbt tda tdb tdd tde tdi tdl tdn tdp tdr tds tdt te- tea teb ted tee tei tel ten tep ter tes tet tia tib tid tie tii til tin tip tir tis tit tla tld tle tli tll tln tlp tlr tls tlt tna tnb tnd tne tni tnl tnn tnp tnr tns tnt tpa tpb tpd tpe tpi tpl tpn tpp tpr tps tpt tra trb trd tre tri trl trn trp trr trs trt tsa tsb tsd tse tsi tsl tsn tsp tsr tss tst tta ttb ttd tte tti ttl ttn ttp ttr tts ttt