-er a-a a-b a-c aaa aab aac aae aag aah aam aan aao aar aau ab- aba abb abc abe abg abh abm abn abo abr abu ac- aca acb acc ace acg ach acm acn aco acr acu aea aeb aec aee aeg aeh aem aen aeo aer aeu ag- aga agb agc age agg agh agm agn ago agr agu aha ahb ahc ahe ahg ahh ahm ahn aho ahr ahu ama amb amc ame amg amh amm amn amo amr amu an- ana anb anc ane ang anh anm ann ano anr anu aoa aob aoc aoe aog aoh aom aon aoo aor aou ar- ara arb arc are arg arh arm arn aro arr aru au- aua aub auc aue aug auh aum aun auo aur b-u baa bab bac bae bag bah bam ban bao bar bau bba bbb bbc bbe bbg bbh bbm bbn bbo bbr bbu bca bcb bcc bce bcg bch bcm bcn bco bcr bcu be- bea beb bec bee beg beh bem ben beo ber beu bga bgb bgc bge bgg bgh bgm bgn bgo bgr bgu bha bhb bhc bhe bhg bhh bhm bho bhr bhu bma bmb bmc bme bmg bmh bmm bmn bmo bmr bmu bna bnb bnc bne bng bnn bno bnr bnu boa bob boc boe bog boh bom bon boo bor bou bra brb bre brg brh brm brn bro brr bru bua bub buc bue bug buh bum bun buo bur buu c-- caa cab cac cae cag cah cam can cao car cau cba cbb cbc cbe cbg cbh cbm cbn cbo cbr cbu cca ccb ccc cce ccg cch ccm ccn cco ccr ccu ce- cea ceb cec cee ceg ceh cem cen ceo cer ceu cga cgb cgc cge cgg cgh cgm cgn cgo cgr cgu ch- cha chb chc che chg chh chm chn cho chr chu cma cmb cmc cme cmg cmh cmm cmn cmo cmr cmu cn- cna cnb cnc cne cng cnh cnm cnn cno cnr cnu co- coa cob coc coe cog coh com con coo cor cou cra crb crc cre crg crh crm crn cro crr cru cua cub cuc cue cug cuh cum cun cuo cur cuu eaa eab eac eae eag eah eam ean eao ear eau eba ebb ebc ebe ebg ebh ebm ebn ebo ebr ebu ec- eca ecb ecc ece ecg ech ecm ecn eco ecr ecu eea eeb eec eee eeg eem een eeo eer ega egb egc ege egg egh egm egn ego egr egu eha ehb ehc ehe ehg ehh ehm ehn eho ehr ehu em- ema emb emc eme emg emh emm emn emo emr emu en- ena enb enc ene eng enh enm enn eno enr enu eo- eoa eob eoc eoe eog eoh eom eon eoo eor eou era erb erc ere erg erh erm ern ero err eru eu- eua eub euc eue eug eun eur gaa gab gac gae gag gah gam gan gao gar gau gba gbc gbe gbg gbh gbm gbn gbo gbr gbu gca gcb gcc gce gcg gch gcm gcn gco gcr gcu ge- gea geb gec gee geg geh gem gen geo ger geu gga ggb ggc ggg ggh ggm ggn ggo ggr ggu gha ghb ghc ghe ghg ghh ghn gho ghr gma gmb gmc gme gmg gmh gmm gmn gmo gmr gna gnb gnc gne gnm gnn gno gnr gnu goa gob goc goe gog goh gom gon goo gor gou gra grb grc gre grg grh grm grn gro grr gru gu- gua gub guc gue gug gum gun guo gur guu haa hab hac hae hag hah ham han hao har hau hba hbb hbc hbe hbg hbh hbm hbn hbo hbr hbu hca hcb hcc hce hcg hch hcm hcn hco hcr he- hea heb hec hee heg heh hem hen heo her heu hga hgb hgc hge hgg hgh hgm hgn hgo hgr hgu hha hhb hhc hhe hhg hhh hhm hhn hho hhr hhu hma hmb hmc hme hmg hmh hmm hmo hmr hmu hna hnb hnc hne hng hnh hnn hno hnu hoa hob hoc hoe hog hoh hom hon hoo hor hou hr- hra hrb hrc hre hrg hrh hrm hrn hro hrr hru hua hub huc hue hug huh hum hun huo hur huu m-o m-r maa mab mac mae mag mah mam man mao mar mau mba mbb mbc mbe mbg mbh mbm mbo mbr mbu mc- mca mcb mcc mce mcg mch mcm mcn mco mcr mcu mea meb mec mee meg meh mem men meo mer meu mga mgb mgc mge mgh mgm mgn mgo mgr mgu mha mhc mhg mhh mhm mhn mho mhr mhu mma mmb mmc mme mmg mmh mmm mmn mmo mmr mmu mna mnb mnc mne mng mnm mnn mno mnr mnu moa mob moc moe mog moh mom mon moo mor mou mra mrb mrc mre mrg mrh mrm mrn mro mrr mru mua mub muc mue mug muh mum mun mur muu naa nab nac nae nag nah nam nan nao nar nau nba nbb nbc nbe nbg nbm nbn nbo nbr nbu nca ncb ncc nce ncg nch ncm ncn nco ncr ncu ne- nea neb nec nee neg neh nem nen neo ner neu nga ngb ngc nge ngg ngh ngm ngn ngo ngu nha nhb nhc nhe nhg nhh nhm nhn nhr nhu nma nmb nmc nme nmg nmh nmm nmn nmo nmr nmu nna nnb nnc nne nng nnh nnm nnn nno nnu no- noa nob noc noe nog noh nom non noo nor nou nra nrb nrc nre nrg nrm nrn nro nrr nru nua nub nuc nue nug nuh num nun nuo nur nuu oaa oab oac oae oag oah oam oan oao oar oau ob- oba obb obc obe obg obh obm obn obo obr obu oc- oca ocb occ ocg och ocm ocn oco ocr ocu oea