mree mren mrkr mrmc mrnc mron mrrc mruk mube mubo muc- mucc muce muck mucu muee muke muko mume mumm mumo mumu munc mune munk munn muno munu muon murc mure murk murn muro murr muru nbbc nbbo nbcc nbco nber ncbc nccc nccn nccr nccu ncec ncee ncem ncen ncer ncmm ncnc ncoc ncor ncrc ncre ncue ncuk nebb nebe nebn nebo nebr nebu necc nece neck neco necr neeb neem neen neer neke neko neku nem- neme nemn nemo nemu nene neno nenu neo- neoc neon neoo nerc nere nerk nerm nero nerr neru neuc neue neuk neum neun neuo neur neuu nkok nkor nkum nm-e nmmc nmoc nmon nmrc nnmc nnnn nobc nobm nobo nobu noce nock noco noem noer noke noko nom- nome nomo nomu non- none nonn nono nonu noo- noob nook noon nooo noor nor- norb norc nore nork norm norn noro norr noun nour nrem nren nroc nron nrrc nubc nube nubk nuce nuck nucu nuee nuer nuke nuku numb nume numm numu nunc nune nunk nunn nuno nuoc nuon nurc nure nurn nurr nuru nuuk o-eo obbo obec oben ober obkb oboe obok obon obor obre obro ocbc occc occn oce ocee ocke ocom ocon ocre ocro ocrr ocum ocur oec- oecc oeec oeme oen- oeno oere oerm okcu oken oker okko okmo okno okok okom okon okor okre okro okun okur ombe ombo ombu omee omen omeo omer omn- omne omo- omoe omon omoo omor omre omro omuo onc- once onco one- oneb onec onee onek oneo oner onme onne onno onon onor onue onur oobe oocr ooer ooku oome oone oooo oore orbb orbe orbo orbu orce orco ore- oreb orec orek orem oren oreo orer orke orko orme ormn ormo ornc orne orno oro- oroe orok orom oron oror orro orub orum oucc ouen ouer oume oun- oune our- oure ourn ouro ouu- rbbb rbbr rbmk rcbc rcbo rccb rccc rcnr rcon rebb rebe rebk rebo rebu recc rece reck recm recr recu reeb reek reem reen reke reko reme remn remo rene renk renn reno renu reou rere rero reru reue reuk reuu rmon rnbr rnco rob- robb robe robo robu rocc roce rock roco roen roer roke rokk roko rokr roku romb rome romk romm romo ronc rone ronk rono roob rook room roon roor rorc rore rork roro roru roub roue rouk roum roun rrkm rrmc rrrr rrum rrun rubb rube rubu ruce ruck ruen ruer ruke rukk rukn ruku rumb rume rumm rumo runc rune runk runn runo ruok rurc rure ruro ruru ruun ubbe ubbo ubek uber uboc ubon ucbc ucmc ucom ucon ucrc ueno ukcc ukek ukeu ukko uknc ukok ukon ukrc ukum ukur umb- umbe umbo umec umer ummo umno umoe umok umor unbe uncc unce unco uneb unec unee unen uner unke unkn unko unmc unmr unne unno unon unro unum uocc uoke uomo uone uor- uore urbe ure- urke urne uro- urok urom uroo urre uruk urum urun urur uuen uuno uuoc uuuu