-er a-a a-b a-t aaa aab aae aag aam aao aap aar aas aat ab- aba abb abe abg abm abo abp abr abs abt aea aeb aee aeg aem aeo aep aer aes aet ag- aga agb age agg agm ago agp agr ags agt ama amb ame amg amm amo amp amr ams amt aoa aob aoe aog aom aoo aop aor aos aot ap- apa apb ape apg apm apo app apr aps apt ar- ara arb are arg arm aro arp arr ars art as- asa asb ase asg asm aso asp asr ass ast at- ata atb ate atg atm ato atp atr ats att b-p baa bab bae bag bam bao bap bar bas bat bba bbb bbe bbg bbm bbo bbp bbr bbs bbt be- bea beb bee beg bem beo bep ber bes bet bga bgb bge bgg bgm bgo bgp bgr bgs bgt bma bmb bme bmg bmm bmo bmp bmr bms bmt boa bob boe bog bom boo bop bor bos bot bpa bpb bpe bpg bpm bpo bpp bpr bps bpt bra brb bre brg brm bro brp brr brs brt bsa bsb bse bsg bsm bso bsp bsr bss bst bta btb bte btg btm bto btp btr bts btt eaa eab eae eag eam eao eap ear eas eat eba ebb ebe ebg ebm ebo ebp ebr ebs ebt eea eeb eee eeg eem eeo eep eer ees eet ega egb ege egg egm ego egp egr egs egt em- ema emb eme emg emm emo emp emr ems emt eo- eoa eob eoe eog eom eoo eop eor eos eot ep- epa epb epe epg epm epo epp epr eps ept era erb ere erg erm ero erp err ers ert es- esa esb ese esg esm eso esp esr ess est eta etb ete etg etm eto etp etr ets ett g-p gaa gab gae gag gam gao gap gar gas gat gba gbe gbg gbm gbo gbp gbr gbs gbt ge- gea geb gee geg gem geo gep ger ges get gga ggb ggg ggm ggo ggp ggr ggs ggt gma gmb gme gmg gmm gmo gmp gmr gms gmt goa gob goe gog gom goo gop gor gos got gpa gpb gpe gpg gpm gpo gpp gpr gps gpt gra grb gre grg grm gro grp grr grs grt gsa gsb gse gsg gsm gso gsp gsr gss gst gta gtb gte gtg gtm gto gtp gtr gts gtt m-o m-r maa mab mae mag mam mao map mar mas mat mba mbb mbe mbg mbm mbo mbp mbr mbs mbt mea meb mee meg mem meo mep mer mes met mga mgb mge mgm mgo mgp mgr mgs mgt mma mmb mme mmg mmm mmo mmp mmr mms mmt moa mob moe mog mom moo mop mor mos mot mpa mpb mpe mpg mpm mpo mpp mpr mps mpt mra mrb mre mrg mrm mro mrp mrr mrs mrt msa msb mse msg msm mso msp msr mss mst mta mtb mte mtg mtm mto mtp mtr mts mtt oaa oab oae oag oam oao oap oar oas oat ob- oba obb obe obg obm obo obp obr obs obt oea oeb oee oeg oem oeo oep oer oes oet oga oge ogg ogo ogp ogs ogt om- oma omb ome omg omm omo omp omr oms omt oo- ooa oob oog oom ooo oop oor oos oot op- opa opb ope opg opm opo opp opr ops opt or- ora orb ore org orm oro orp orr ors ort os- osa osb ose osg osm oso osp osr oss ost ot- ota otb ote otg otm oto otp otr ots ott p-p paa pab pae pag pam pao pap par pas pat pba pbb pbe pbg pbm pbo pbp pbr pbs pbt pea peb pee peg pem peo pep per pes pet pga pgb pge pgg pgm pgo pgp pgr pgs pgt pma pmb pme pmg pmm pmo pmp pmr pms pmt poa pob poe pog pom poo pop por pos pot ppa ppb ppe ppg ppm ppo ppp ppr pps ppt pra prb pre prg prm pro prp prr prs prt ps- psa psb pse psg psm pso psp psr pss pst pt- pta ptb pte ptg ptm pto ptp ptr pts ptt ra- raa rab rae rag ram rao rap rar ras rat rba rbb rbe rbg rbm rbo rbp rbr rbs rbt re- rea reb ree reg rem reo rep rer res ret rga rgb rge rgg rgo rgp rgr rgs rgt rma rmb rme rmg rmm rmo rmp rmr rms rmt roa rob roe rog rom roo rop ror ros rot rpa rpb rpe rpg rpm rpo rpp rpr rps rpt rra rrb rrg rrm rrp rrr rrs rrt rsa rsb rse rsg rsm rso rsp rsr rss rst rta rtb rte rtg rtm rto rtp rtr rts rtt saa sab sae sag sam sao sap sar sas sat sba sbb sbe sbg sbm sbo sbp sbr sbs sbt se- sea seb see seg sem seo sep ser ses set sga sgb sge sgg sgm sgo sgp sgr sgs sgt sma smb sme smg smm smo smp smr sms smt soa sob soe sog som soo sop sor sos sot spa spb spe spg spm spo spp spr sps spt sr- sra srb sre srg srm sro srp srr srs srt ss- ssa ssb sse ssg ssm sso ssp ssr sss sst sta stb ste stg stm sto stp str sts stt taa tab tae tag tam tao tap tar tas tat tba tbb tbe tbg tbm tbo tbp tbr tbs tbt te- tea teb tee teg tem teo tep ter tes tet tga tgb tge tgg tgm tgo tgp tgr tgs tgt tma tmb tme tmg tmm tmo tmp tmr tms tmt to- toa tob toe tog tom too top tor tos tot tpa tpb tpe tpg tpm tpo tpp tpr tps tpt tra trb tre