nrml nron nrrd nrrl nudd nudi nudo nuhi nuim nuin nuli null numi numm numu nung nunn nuno nuon nurd nuri nurl nurn nurr nuru oddd oddi odin odio odir odiu odmr odoh odom odon odoo odor odou odrl odum odur ogdh ogdl oggi oghi ogin ogli ogml ogni ognl ogod ogog ogoi ogon ogou ogri ogro ogui ogum ogun ohgr ohhi ohho ohid ohio ohno ohoh ohrn ohum oido oigo oiii oion oium oldh oldn olgr olhm olid olig olim olin olio olli ollo olmi olmo olog olom olon olor olur omid omim omin omio omn- omni omo- omoi omon omoo omor omri omro omul omuo ondi ondo ongi ongo ongu onil onir onni onno onod onon onor onur oodi ooho ooid oold oolo oooh oooo oord ordn ordo ordu orgn orgo ori- orid orig oril orin orio orlo orlu ormn ormo orni orno oro- orom oron oror orri orro orum oudh ough ouii ouin ouir ould oulu oumi oun- ound oung our- ourn ouro ouu- rdio rhim rhin rhio rhli rhod rhog rhoh rhon rhug rhum rhun ridd ridi rido rigg righ rigi rigo rigu riho riin rill rilo rilu rimi rimm rimo rimu rind ring rinn rino riol riom rion riou riri rlin rlml rlug rmll rmon rmrg rndm rnhl rnin rnld rnli rnod rodd rodi rodo rogg rogh rogi rogo rohl rohm rohn rohr rohu roid roig roil roin roio roir roiu rold roll rolm rolo romd romi romm romo rond rong roni rono rood roog rooi rool room roon roor rori roro roru roud rouh roul roum roun rrrr rrum rrun rudd rudi rudl rudo rugg rugh rugi ruhh ruhi ruhl ruhm ruhn ruhr ruid ruin rull rulo rumi ruml rumm rumo rund rung runi runn runo rurd ruri ruro ruru ruud ruun uddi udid udig udim udin udir udoh udon udoo udun uggo ughi ugli ugni ugod ugol ugri ugro ugur uguu uh-d uhid uhno uhoh uhuh uiml uirr ulim ulli ullo ullr ulmi ulmo ulmu ulno ulo- ulog ulul ulum umgo ummg ummo umno umol umor umri undi undo ungo ungu uni- unii unin unio unir unmr unni unno unon unro unum uoml uomo uor- urdu urgh urgi urgu urho urim urin uriu urmi urni uro- urol urom uroo urrh urri urum urun urur uulu uuni uuno uuri uuuu