nili nill nilu nine ning nini ninl nire niru niue niur niye niyi nler nlgn nlrb nngn nnnn nren nrlb nrrl nube nubi nubl nuby nuee nuel nuer nuff nuin nule nuli null nune nung nunn nuny nure nuri nurl nurn nurr nuru nyen nyer nyle nyll nyne nyny nyrb nyrf nyul rbbb rbbr rble rebb rebe rebu reeb reef reel reen refe reff refg refi refl refn refr refu rege regi regl regn regr regu reif reii reil rein reir reiu relb rele rell rely rene reng reni renn renu reny rere rerg reri reru rery reue reuf reul reuu reye reyn rfef rffl rgbe rgbi rib- ribe ribu riby rief riel rien rier rieu rife riff rifu rige rigg rigi rigu rigy riif riin rile rill rilu rily rine rinf ring rinn riny rire riri riue riyf rlee rlef rleu rlif rlin rlug rnbr rnie rnin rnli rrif rrle rrrr rrun rubb rube rubi rubu ruby ruel ruen ruer rufe ruff ruge rugg rugi ruif ruin rule rull ruly rune runf rung runi runn runy rure ruri ruru ruun ruyi ruyl rybe ryeb ryel ryen ryfe ryff ryge ryif ryle ryne ryng rynn ryue ryun ryyf u-ie ubbe ubbi uber ubii ubir uble ubli ubly uein ueir uele ueli uell ufel ufer uffe ugli ugly ugne ugni ugny ugri ugur uguu uige uile uirr uleb ulee ulen uley ulfe ulie ulle ulli ullr ully ulne ulul ulye unbe uneb unee unef unen uner ungu uni- unie unif unii unin unir unle unlf unne unni unrf urbe urbi ure- urey urfe urff urfi urge urgi urgu urib urie urif urin uriu urle urne urni urre urri urry urun urur uryn uuen uulu uuni uuri uuuu uuyn uyin uyir uyle uyre yben yber ybnl ybry ye-u yeel yeen yeer yefe yeff yegg yegi yeie yeii yeir yele yelf yeli yell yelu yene yeng yeni yerb yere yeri yerl yern yerr yery yeue yeun yeye yeyi yeyr yfel ygun yien yiff yile yili yill ying yirb yire yirn yirr ylle ylli ynge ynne ynug yren yrin yrle yrly yrne yrun yryn yubu yuel yuen yuer yuff yufu yugg yugi yugu yuie yuin yule yuli yulu yune yung yuny yure yuri yurn yury yuye yuyu yyfe yyff yyyy