-er a-a a-b aaa aab aad aae aaj aam aao aar aau ab- aba abb abd abe abj abm abo abr abu ad- ada adb add ade adj adm ado adr adu aea aeb aed aee aej aem aeo aer aeu aja ajb ajd aje ajj ajm ajo ajr aju ama amb amd ame amm amo amr amu aoa aob aod aoe aoj aom aoo aor aou ar- ara arb ard are arj arm aro arr aru au- aua aub aud aue auj aum auo aur b-u baa bab bad bae baj bam bao bar bau bba bbb bbd bbe bbm bbo bbr bbu bda bdb bdd bde bdj bdm bdo bdr bdu be- bea beb bed bee bem beo ber beu bja bjd bjj bjm bjr bju bma bmb bmd bme bmj bmm bmo bmr bmu boa bob bod boe boj bom boo bor bou bra brb brd bre brj brm bro brr bru bua bub bud bue buj bum buo bur buu daa dab dad dae daj dam dao dar dau dba dbb dbd dbe dbm dbo dbr dbu dda ddb ddd dde ddm ddo ddr ddu de- dea deb ded dee dej dem deo der deu dj- dja djb djd dje djm djo dma dmb dmd dme dmm dmo dmr dmu doa dob dod doe doj dom doo dor dou dra drb drd dre drj drm dro drr dru dua dub dud due dum duo dur eaa eab ead eae eaj eam eao ear eau eba ebb ebd ebe ebj ebm ebo ebr ebu ed- eda edb edd ede edj edm edo edr edu eea eeb eed eee eem eeo eer eja ejd ejo eju em- ema emb emd eme emm emo emr emu eo- eoa eob eod eoe eom eoo eor eou era erb erd ere erm ero err eru eu- eua eub eud eue euj eur j-d jaa jab jad jae jaj jam jao jar jau jba jbj jbm jbo jbr jbu jda jdb jde jdm jdo jdr jea jeb jed jee jej jem jeo jer jeu jja jjb jjj jjr jju jma jmb jmd jme jmj jmm jmo jmr jmu joa job jod joe joj jom joo jor jou jra jrb jrm jro jrr jub jud jue jum juo jur m-o m-r maa mab mad mae maj mam mao mar mau mba mbb mbd mbe mbj mbm mbo mbr mbu mda mdb mdd mde mdj mdm mdo mdr mdu mea meb med mee mej mem meo mer meu mjb mjd mje mjj mjm mjr mma mmb mmd mme mmj mmm mmo mmr mmu moa mob mod moe mom moo mor mou mra mrb mrd mre mrj mrm mro mrr mru mua mub mud mue muj mum mur muu oaa oab oad oae oaj oam oao oar oau ob- oba obb obd obe obj obm obo obr obu oda odb odd ode odm odo odr odu oea oeb oed oee oem oeo oer oja ojb ojd oje ojm ojo oju om- oma omb omd ome omj omm omo omr omu oo- ooa oob ood oom ooo oor or- ora orb ord ore orm oro orr oru ou- oua oud oue oum ouo our ra- raa rab rad rae raj ram rao rar rau rba rbb rbd rbe rbm rbo rbr rbu rda rdb rdd rde rdj rdm rdo rdr rdu re- rea reb red ree rem reo rer reu rja rjm rjr rma rmb rmd rme rmm rmo rmr roa rob rod roe roj rom roo ror rou rra rrb rrd rrm rrr rru rua rub rud rue rum ruo rur ruu ua- uaa uab uad uae uaj uam uao uar uau uba ubb ube ubo ubr ubu uda udb udd ude udj udm udo udr udu uea ueb ued uee uem uer ujo um- uma umb umd ume umm umo umr umu uoa uob uod uoe uoj uom uoo uor ur- ura urb urd ure urm uro urr uru uua uue uum uur uuu