-er a-a a-b aaa aab aad aae aag aam aao aar aau ab- aba abb abd abe abg abm abo abr abu ad- ada adb add ade adg adm ado adr adu aea aeb aed aee aeg aem aeo aer aeu ag- aga agb agd age agg agm ago agr agu ama amb amd ame amg amm amo amr amu aoa aob aod aoe aog aom aoo aor aou ar- ara arb ard are arg arm aro arr aru au- aua aub aud aue aug aum auo aur b-u baa bab bad bae bag bam bao bar bau bba bbb bbd bbe bbg bbm bbo bbr bbu bda bdb bdd bde bdg bdm bdo bdr bdu be- bea beb bed bee beg bem beo ber beu bga bgb bgd bge bgg bgm bgo bgr bgu bma bmb bmd bme bmg bmm bmo bmr bmu boa bob bod boe bog bom boo bor bou bra brb brd bre brg brm bro brr bru bua bub bud bue bug bum buo bur buu daa dab dad dae dag dam dao dar dau dba dbb dbd dbe dbg dbm dbo dbr dbu dda ddb ddd dde ddg ddm ddo ddr ddu de- dea deb ded dee deg dem deo der deu dga dgd dge dgg dgm dgr dgu dma dmb dmd dme dmg dmm dmo dmr dmu doa dob dod doe dog dom doo dor dou dra drb drd dre drg drm dro drr dru dua dub dud due dug dum duo dur eaa eab ead eae eag eam eao ear eau eba ebb ebd ebe ebg ebm ebo ebr ebu ed- eda edb edd ede edg edm edo edr edu eea eeb eed eee eeg eem eeo eer ega egb egd ege egg egm ego egr egu em- ema emb emd eme emg emm emo emr emu eo- eoa eob eod eoe eog eom eoo eor eou era erb erd ere erg erm ero err eru eu- eua eub eud eue eug eur g-d gaa gab gad gae gag gam gao gar gau gba gbd gbe gbg gbm gbo gbr gbu gda gdb gdd gde gdm gdo gdr gdu ge- gea geb ged gee geg gem geo ger geu gga ggb ggd ggg ggm ggo ggr ggu gma gmb gmd gme gmg gmm gmo gmr goa gob god goe gog gom goo gor gou gra grb grd gre grg grm gro grr gru gu- gua gub gud gue gug gum guo gur guu m-o m-r maa mab mad mae mag mam mao mar mau mba mbb mbd mbe mbg mbm mbo mbr mbu mda mdb mdd mde mdg mdm mdo mdr mdu mea meb med mee meg mem meo mer meu mga mgb mgd mge mgm mgo mgr mgu mma mmb mmd mme mmg mmm mmo mmr mmu moa mob mod moe mog mom moo mor mou mra mrb mrd mre mrg mrm mro mrr mru mua mub mud mue mug mum mur muu oaa oab oad oae oag oam oao oar oau ob- oba obb obd obe obg obm obo obr obu oda odb odd ode odg odm odo odr odu oea oeb oed oee oeg oem oeo oer oga ogd oge ogg ogo om- oma omb omd ome omg omm omo omr omu oo- ooa oob ood oog oom ooo oor or- ora orb ord ore org orm oro orr oru ou- oua oud oue oum ouo our ra- raa rab rad rae rag ram rao rar rau rba rbb rbd rbe rbg rbm rbo rbr rbu rda rdb rdd rde rdg rdm rdo rdr rdu re- rea reb red ree reg rem reo rer reu rga rgb rgd rge rgg rgo rgr rma rmb rmd rme rmg rmm rmo rmr roa rob rod roe rog rom roo ror rou rra rrb rrd rrg rrm rrr rru rua rub rud rue rug rum ruo rur ruu ua- uaa uab uad uae uag uam uao uar uau uba ubb ube ubg ubo ubr ubu uda udb udd ude udg udm udo udr udu uea ueb ued uee ueg uem uer uga ugb uge ugg ugm ugo ugr ugu um- uma umb umd ume umg umm umo umr umu uoa uob uod uoe uog uom uoo uor ur- ura urb urd ure urg urm uro urr uru uua uue uug uum uur uuu