numu nunc nune nunn nunt nurc nure nuri nurn nurr nurt nuru nute nutt nutu rbbb rbbr rcbc rccb rccc rcet rcic rcnr rctc rcti rebb rebe rebu recc rece reci recm recr rect recu reeb reem reen reet reii reim rein reir reit reiu reme remi remn rene reni renn rent renu rere reri rert reru rete reti retr rett reue reut reuu rib- ribe ribu ricc rice rict riem rien rier riet rieu riin rime rimi rimm rimu rine rinn rire riri rite riti ritt ritu riue rmtu rnbr rnie rnin rnnt rnut rrmc rrrr rrum rrun rtcc rtce rtcm rtee rtei rtmc rtmi rubb rube rubi rubu ruce ruci ruct ruen ruer ruet ruin ruit rumb rume rumi rumm rumt runc rune runi runn runt rurc rure ruri ruru rute ruti rutt rutu ruun tbcb tbcc tbce tbit tbrb tccc tccu tcnn tctc tebu tecr tect teec teem teen teer teet teic teie teim tein teir teiu teme temu tenb tenc tene teni tenn tent tenu ter- terc tere teri term tern terr teru tete teti tetr tett tetu teut tibi tibu ticc tice tie- tiee tiei tien tier tiet tiit tiiu time timi timm timn timu tinc tine tini tinn tint tinu tirb tire tiri tirr tiru titc tite titi titt titu tium tmbc tmbr tmcc tmcm tmen tmnt tmtt tnbc tncc tneb tnut trcc tre- trec tree trei trem tren tret treu tri- trib tric trie trim trin trit trmb trmi trmu trtc trte trtr trub truc true trun trut truu ttbb ttcn tten tter ttim tttt tubb tube tubr tubu tucc tuei tuen tuer tuet tuim tuin tuit tuiu tumb tume tumi tumu tunb tunc tune tuni tunn tunu turb turc ture turi turm turn turr turt turu tute tuti tutt tutu tuum u-ie ubbe ubbi uber ubet ubic ubii ubir ubit ucbc ucci ucin ucmc ucrc ucut uein ueir uint uirr umb- umbe umbi umec umer umet umit umri umut unbe uncc unce unci unct uneb unec unee unen uner uni- unic unie unii unin unir unit unmc unmr unne unni untb unte unum unut urbe urbi urci ure- uret urib uric urie urim urin uriu urmi urne urni urre urri urte urum urun urur urut utec uter utin utmb utne utri utti uttu uuen uuni uuri uuuu