-er a-a a-b aaa aab aae aah aam aao aap aar aas ab- aba abb abe abh abm abo abp abr abs aea aeb aee aeh aem aeo aep aer aes aha ahb ahe ahh ahm aho ahp ahr ahs ama amb ame amh amm amo amp amr ams aoa aob aoe aoh aom aoo aop aor aos ap- apa apb ape aph apm apo app apr aps ar- ara arb are arh arm aro arp arr ars as- asa asb ase ash asm aso asp asr ass b-p baa bab bae bah bam bao bap bar bas bba bbb bbe bbh bbm bbo bbp bbr bbs be- bea beb bee beh bem beo bep ber bes bha bhb bhe bhh bhm bho bhp bhr bhs bma bmb bme bmh bmm bmo bmp bmr bms boa bob boe boh bom boo bop bor bos bpa bpb bpe bph bpm bpo bpp bpr bps bra brb bre brh brm bro brp brr brs bsa bsb bse bsh bsm bso bsp bsr bss eaa eab eae eah eam eao eap ear eas eba ebb ebe ebh ebm ebo ebp ebr ebs eea eeb eee eem eeo eep eer ees eha ehb ehe ehh ehm eho ehp ehr ehs em- ema emb eme emh emm emo emp emr ems eo- eoa eob eoe eoh eom eoo eop eor eos ep- epa epb epe eph epm epo epp epr eps era erb ere erh erm ero erp err ers es- esa esb ese esh esm eso esp esr ess haa hab hae hah ham hao hap har has hba hbb hbe hbh hbm hbo hbp hbr hbs he- hea heb hee heh hem heo hep her hes hha hhb hhe hhh hhm hho hhp hhr hhs hma hmb hme hmh hmm hmo hmp hmr hms hoa hob hoe hoh hom hoo hop hor hos hpa hpb hpe hph hpm hpo hpp hpr hps hr- hra hrb hre hrh hrm hro hrp hrr hrs hsa hsb hse hsh hsm hsp hsr hss m-o m-r maa mab mae mah mam mao map mar mas mba mbb mbe mbh mbm mbo mbp mbr mbs mea meb mee meh mem meo mep mer mes mha mhh mhm mho mhp mhr mhs mma mmb mme mmh mmm mmo mmp mmr mms moa mob moe moh mom moo mop mor mos mpa mpb mpe mph mpm mpo mpp mpr mps mra mrb mre mrh mrm mro mrp mrr mrs msa msb mse msh msm mso msp msr mss oaa oab oae oah oam oao oap oar oas ob- oba obb obe obh obm obo obp obr obs oea oeb oee oeh oem oeo oep oer oes oha ohe ohh ohm oho ohp ohr ohs om- oma omb ome omh omm omo omp omr oms oo- ooa oob ooh oom ooo oop oor oos op- opa opb ope oph opm opo opp opr ops or- ora orb ore orh orm oro orp orr ors os- osa osb ose osh osm oso osp osr oss p-p paa pab pae pah pam pao pap par pas pba pbb pbe pbm pbo pbp pbr pbs pea peb pee peh pem peo pep per pes pha phb phe phm pho php phr phs pma pmb pme pmh pmm pmo pmp pmr pms poa pob poe poh pom poo pop por pos ppa ppb ppe pph ppm ppo ppp ppr pps pra prb pre prh prm pro prp prr prs ps- psa psb pse psh psm pso psp psr pss ra- raa rab rae rah ram rao rap rar ras rba rbb rbe rbh rbm rbo rbp rbr rbs re- rea reb ree reh rem reo rep rer res rh- rha rhb rhe rhh rhm rho rhp rhr rhs rma rmb rme rmh rmm rmo rmp rmr rms roa rob roe roh rom roo rop ror ros rpa rpb rpe rph rpm rpo rpp rpr rps rra rrb rrh rrm rrp rrr rrs rsa rsb rse rsh rsm rso rsp rsr rss saa sab sae sah sam sao sap sar sas sba sbb sbe sbh sbm sbo sbp sbr sbs se- sea seb see seh sem seo sep ser ses sh- sha shb she shh shm sho shp shr shs sma smb sme smh smm smo smp smr sms soa sob soe soh som soo sop sor sos spa spb spe sph spm spo spp spr sps sr- sra srb sre srh srm sro srp srr srs ss- ssa ssb sse ssh ssm sso ssp ssr sss