-er a-a a-b a-i a-t aaa aab aae aag aai aam aao aap aar aas aat ab- aba abb abe abg abi abm abo abp abr abs abt aea aeb aee aeg aei aem aeo aep aer aes aet ag- aga agb age agg agi agm ago agp agr ags agt ai- aia aib aie aig aii aim aio aip air ais ait ama amb ame amg ami amm amo amp amr ams amt aoa aob aoe aog aoi aom aoo aop aor aos aot ap- apa apb ape apg api apm apo app apr aps apt ar- ara arb are arg ari arm aro arp arr ars art as- asa asb ase asg asi asm aso asp asr ass ast at- ata atb ate atg ati atm ato atp atr ats att b-p baa bab bae bag bai bam bao bap bar bas bat bba bbb bbe bbg bbi bbm bbo bbp bbr bbs bbt be- bea beb bee beg bei bem beo bep ber bes bet bga bgb bge bgg bgi bgm bgo bgp bgr bgs bgt bi- bia bib bie big bii bim bio bip bir bis bit bma bmb bme bmg bmi bmm bmo bmp bmr bms bmt boa bob boe bog boi bom boo bop bor bos bot bpa bpb bpe bpg bpi bpm bpo bpp bpr bps bpt bra brb bre brg bri brm bro brp brr brs brt bsa bsb bse bsg bsi bsm bso bsp bsr bss bst bta btb bte btg bti btm bto btp btr bts btt eaa eab eae eag eai eam eao eap ear eas eat eba ebb ebe ebg ebi ebm ebo ebp ebr ebs ebt eea eeb eee eeg eem eeo eep eer ees eet ega egb ege egg egi egm ego egp egr egs egt eia eib eie eig eii eim eio eip eir eis eit em- ema emb eme emg emi emm emo emp emr ems emt eo- eoa eob eoe eog eoi eom eoo eop eor eos eot ep- epa epb epe epg epi epm epo epp epr eps ept era erb ere erg eri erm ero erp err ers ert es- esa esb ese esg esi esm eso esp esr ess est eta etb ete etg eti etm eto etp etr ets ett g-p gaa gab gae gag gai gam gao gap gar gas gat gba gbe gbg gbi gbm gbo gbp gbr gbs gbt ge- gea geb gee geg gei gem geo gep ger ges get gga ggb ggg ggi ggm ggo ggp ggr ggs ggt gia gib gie gig gii gim gio gip gir gis git gma gmb gme gmg gmi gmm gmo gmp gmr gms gmt goa gob goe gog goi gom goo gop gor gos got gpa gpb gpe gpg gpi gpm gpo gpp gpr gps gpt gra grb gre grg gri grm gro grp grr grs grt gsa gsb gse gsg gsi gsm gso gsp gsr gss gst gta gtb gte gtg gti gtm gto gtp gtr gts gtt ia- iaa iab iae iag iai iam iao iap iar ias iat iba ibb ibe ibg ibi ibm ibo ibp ibr ibs ibt ie- iea iee ieg iei iem iep ier ies iet iga igb ige igg igi igm igo igp igr igs igt iia iib iie iii iim iio iip iir iis iit im- ima imb ime img imi imm imo imp ims imt io- ioa iob ioe iog ioi iom ioo iop ior ios iot ipa ipb ipe ipg ipi ipm ipo ipp ipr ips ipt ir- ira irb ire irg iri irm iro irp irr irs irt is- isa isb ise isg isi ism iso isp isr iss ist ita itb ite itg iti itm ito itp its itt m-o m-r maa mab mae mag mai mam mao map mar mas mat mba mbb mbe mbg mbi mbm mbo mbp mbr mbs mbt mea meb mee meg mei mem meo mep mer mes met mga mgb mge mgi mgm mgo mgp mgr mgs mgt mi- mia mib mie mig mii mim mio mip mir mis mit mma mmb mme mmg mmi mmm mmo mmp mmr mms mmt moa mob moe mog moi mom moo mop mor mos mot mpa mpb mpe mpg mpi mpm mpo mpp mpr mps mpt mra mrb mre mrg mri mrm mro mrp mrr mrs mrt msa msb mse msg msi msm mso msp msr mss mst mta mtb mte mtg mti mtm mto mtp mtr mts mtt o-i oaa oab oae oag oai oam oao oap oar oas oat ob- oba obb obe obg obi obm obo obp obr obs obt oea oeb oee oeg oei oem oeo oep oer oes oet oga oge ogg ogi ogo ogp ogs ogt oia oib oie oii oim oio oip oir ois oit om- oma omb ome omg omi omm omo omp omr oms omt oo- ooa oob oog ooi oom ooo oop oor oos oot op- opa opb ope opg opi opm opo opp opr ops opt or- ora orb ore org ori orm oro orp orr ors ort os- osa osb ose osg osi osm oso osp osr oss ost ot- ota otb ote otg oti otm oto otp otr ots ott p-p paa pab pae pag pai pam pao pap par pas pat pba pbb pbe pbg pbi pbm pbo pbp pbr pbs pbt pea peb pee peg pei pem peo pep per pes pet pga pgb pge pgg pgi pgm pgo pgp pgr pgs pgt pia pib pie pig pii pim pio pip pir pis pit pma pmb pme pmg pmi pmm pmo pmp pmr pms pmt poa pob poe pog poi pom poo pop por pos pot ppa ppb ppe ppg ppi ppm ppo ppp ppr pps ppt pra prb pre prg pri prm pro prp prr prs prt ps- psa psb pse psg psi psm pso psp psr pss pst pt- pta ptb pte ptg pti ptm pto ptp ptr pts ptt ra- raa rab rae rag