nour nrca nrdc nrna nroc nron nrrc nrrd nuan nuca nuch nucu nuda nudc nudd nudo nuha nuna nunc nung nunn nuno nuoc nuon nura nurc nurd nurn nurr nuru oaau oahu oara ocac ocad ocan occa occc occn ocga ocha ocna ocon ocra ocro ocrr ocur odac odah odda oddd odoh odon odoo odor odou odra odur ogar ogdc ogdh ogna ogoa ogod ogog ogon ogou ogra ogro ogun ohad ohan ohau ohcc ohgr ohho ohno ohoh ohra ohrn onah onan onar onc- onca oncd onco onda ondo onga ongo ongu onha onna onno onod onon onor onra onur ooaa oocr ooda ooha ooho oona oooh oooo oora oord orac orad orah oran orao orar orca orch orco orda ordn ordo ordu orga orgn orgo orna ornc orno oro- oron oror orra orro ouac ouad ouan oucc ouch oudc oudh ough oun- ouna ound oung our- oura ourn ouro ouu- raad raag raan rac- raca racc rach raco racu rada radc radd radh rado radr radu raga ragg ragh rago ragu raha rahn rahr rahu rana ranc rand rang rann rano raoc raoh rara raro raua rauc raud raun rcac rccc rcdc rcga rcgc rcnr rcon rcrd rcrg rdac rdna rdoc rgan rhag rhau rhcg rhoa rhoc rhod rhog rhoh rhon rhug rhun rnag rnco rndc rnod road roag roan roar roca rocc roch roco roda rodd rodo roga rogg rogh rogo roha rohn rohr rohu rona ronc rond rong rono rood roog roon roor rora rorc roro roru roua roud rouh roun rrad rrah rrna rrrr rrun ruad ruag ruah ruan ruca ruch ruda rudd rudo ruga rugg rugh ruhh ruhn ruhr runa runc rund rung runn runo rura rurc rurd ruro ruru ruud ruun uaca uang uaoc uarc uaru uaua ucad ucan ucar ucca ucdc ucdd ucha ucho ucon ucrc ucua udaa udad udar udau udca udoh udon udoo udra udun ugao ugar ugcc ugcg uggo ugod ugra ugro ugur uguu uh-d uhna uhno uhoh uhuh unaa unac unan unar unau unca uncc uncg unch unco unda undo unga ungo ungu unha unna unno unon unra unro uocc uor- urac urad uran urao urau urca urch urda urdu urga urgh urgu urho urna uro- uroa uroo urra urrh urun urur uuno uuoc uuuu